# XREX Help Center

> Frequently Asked Questions

## English

### Managing My Account

- [How to open an XREX exchange account?](https://support.xrex.io/en/articles/4210053-how-to-open-an-xrex-exchange-account.md): It only takes a few minutes to get started.
- [How to set up two-factor authentication \(2FA\)?](https://support.xrex.io/en/articles/5532315-how-to-set-up-two-factor-authentication-2fa.md): Enable two-factor authentication and secure your account.
- [What Android and iOS versions does the XREX mobile app support?](https://support.xrex.io/en/articles/5611432-what-android-and-ios-versions-does-the-xrex-mobile-app-support.md): Download the app for an intuitive and user-friendly experience.
- [How to pass XREX personal identity verification?](https://support.xrex.io/en/articles/5533700-how-to-pass-xrex-personal-identity-verification.md): Effortlessly verify your identity with our step-by-step video guide.
- [What is identity verification and how does it benefit me?](https://support.xrex.io/en/articles/4722267-what-is-identity-verification-and-how-does-it-benefit-me.md): Verify your account and access all services on the XREX crypto-fiat exchange.
- [What are the required documents for personal identity verification?](https://support.xrex.io/en/articles/4722279-what-are-the-required-documents-for-personal-identity-verification.md): Learn about the documents required for identity verification to smoothly complete the verification process!
- [What documents are considered sufficient as proof of address \(PoA\)?](https://support.xrex.io/en/articles/5802014-what-documents-are-considered-sufficient-as-proof-of-address-poa.md): Learn about the documents that can serve as valid proof of address.
- [What is “Customer Periodic Review”?](https://support.xrex.io/en/articles/13270233-what-is-customer-periodic-review.md)
- [How to open a corporate account?](https://support.xrex.io/en/articles/4722452-how-to-open-a-corporate-account.md): A step-by-step guide to applying for a corporate XREX account.
- [How to open an Indian corporate account?](https://support.xrex.io/en/articles/8893975-how-to-open-an-indian-corporate-account.md): A step-by-step guide to applying for a corporate XREX account.
- [Is my private data in safe hands with XREX?](https://support.xrex.io/en/articles/5519760-is-my-private-data-in-safe-hands-with-xrex.md): A secure and responsible fiat-crypto exchange.
- [What is two-factor authentication \(2FA\)?](https://support.xrex.io/en/articles/4725793-what-is-two-factor-authentication-2fa.md): Add extra security to your XREX account with two-factor authentication.
- [How to enter a two-factor authentication \(2FA\) code into XREX?](https://support.xrex.io/en/articles/5504771-how-to-enter-a-two-factor-authentication-2fa-code-into-xrex.md): Step-by-step guide for two-factor authentication and Google Authenticator app.
- [Is it safe to trade cryptocurrencies without two-factor authentication \(2FA\)?](https://support.xrex.io/en/articles/4725801-is-it-safe-to-trade-cryptocurrencies-without-two-factor-authentication-2fa.md): Secure your XREX account with two-factor authentication.
- [How to disable 2FA?](https://support.xrex.io/en/articles/9316985-how-to-disable-2fa.md): Disable two-factor authentication on the XREX App.
- [How to delete my XREX account?](https://support.xrex.io/en/articles/5537057-how-to-delete-my-xrex-account.md): A step-by-step guide to closing your XREX account.
- [How to enable or disable the PIN code?](https://support.xrex.io/en/articles/9316999-how-to-enable-or-disable-the-pin-code.md): Enable screen lock PIN to secure your account.
- [How to enable or disable biometrics?](https://support.xrex.io/en/articles/9317005-how-to-enable-or-disable-biometrics.md): Enable biometrics to secure your account.

### Deposit and Withdraw

- [Fiat and cryptocurrency deposit fees](https://support.xrex.io/en/articles/4210061-fiat-and-cryptocurrency-deposit-fees.md)
- [Fiat and cryptocurrency withdrawal fees](https://support.xrex.io/en/articles/4722091-fiat-and-cryptocurrency-withdrawal-fees.md): XREX supports withdrawal for the USD, TWD, BTC, ETH, USDT, USDC, XRP, and other cryptocurrencies.
- [What are the deposit and withdrawal limits for Basic and Premium XREX accounts?](https://support.xrex.io/en/articles/4709555-what-are-the-deposit-and-withdrawal-limits-for-basic-and-premium-xrex-accounts.md): Withdraw and deposit limits for Fiat and Cryptocurrency.
- [Other Service Fees](https://support.xrex.io/en/articles/8540308-other-service-fees.md)
- [What is a custodian?](https://support.xrex.io/en/articles/10221227-what-is-a-custodian.md): Learn more about XREX’s custodians
- [How to add your New Taiwan Dollar \(TWD\) bank account?](https://support.xrex.io/en/articles/8140246-how-to-add-your-new-taiwan-dollar-twd-bank-account.md): Verify your identity first, then link your bank account for quick and secure transactions.
- [How to deposit New Taiwan dollar \(TWD\) to the XREX crypto-fiat exchange?](https://support.xrex.io/en/articles/8140244-how-to-deposit-new-taiwan-dollar-twd-to-the-xrex-crypto-fiat-exchange.md): Follow our step-by-step guide to get started.
- [How to adjust the New Taiwan dollar \(TWD\) deposit limit?](https://support.xrex.io/en/articles/8347267-how-to-adjust-the-new-taiwan-dollar-twd-deposit-limit.md): Easily adjust your TWD deposit limit—flexible, convenient, and fast.
- [How to add a US dollar bank account?](https://support.xrex.io/en/articles/6305844-how-to-add-a-us-dollar-bank-account.md): Follow our step-by-step instructions to get started.
- [How to deposit US dollars into the XREX crypto-fiat exchange?](https://support.xrex.io/en/articles/4721955-how-to-deposit-us-dollars-into-the-xrex-crypto-fiat-exchange.md): Follow our step-by-step guide to get started.
- [How to deposit Bitcoin, USDT, and other cryptocurrencies to XREX crypto-fiat exchange?](https://support.xrex.io/en/articles/4764407-how-to-deposit-bitcoin-usdt-and-other-cryptocurrencies-to-xrex-crypto-fiat-exchange.md): XREX supports Bitcoin \(BTC\), ETH, USDT and other cryptocurrencies in our crypto-fiat exchange.
- [How to deposit TRC20-USDT?](https://support.xrex.io/en/articles/7174943-how-to-deposit-trc20-usdt.md): Deposit USDT in a few simple steps.
- [Minimum Deposit Limit for Cryptocurrencies](https://support.xrex.io/en/articles/10345610-minimum-deposit-limit-for-cryptocurrencies.md): The minimum threshold for cryptocurrency deposits.
- [How to withdraw New Taiwan dollar \(TWD\) from the XREX exchange?](https://support.xrex.io/en/articles/8352250-how-to-withdraw-new-taiwan-dollar-twd-from-the-xrex-exchange.md): Follow this tutorial for an easy fiat withdrawal!
- [How to withdraw US dollar from the XREX exchange?](https://support.xrex.io/en/articles/4722024-how-to-withdraw-us-dollar-from-the-xrex-exchange.md): Follow this tutorial for an easy fiat withdrawal!
- [How to withdraw BTC, USDT, and other cryptocurrencies from the XREX crypto-fiat exchange?](https://support.xrex.io/en/articles/4721815-how-to-withdraw-btc-usdt-and-other-cryptocurrencies-from-the-xrex-crypto-fiat-exchange.md): Follow our step-by-step guide to get started.
- [How to withdraw TRC20-USDT?](https://support.xrex.io/en/articles/7174932-how-to-withdraw-trc20-usdt.md): Withdraw USDT in a few simple steps.
- [How to check your transaction history in XREX?](https://support.xrex.io/en/articles/6006049-how-to-check-your-transaction-history-in-xrex.md): Learn how to keep track of all of your transactions and orders!
- [How much time does it take for cryptocurrency deposits and withdrawals to take place?](https://support.xrex.io/en/articles/4764396-how-much-time-does-it-take-for-cryptocurrency-deposits-and-withdrawals-to-take-place.md): In XREX, the time it takes to deposit and withdraw cryptocurrencies depends on the chain.
- [Country List of Financial Institutions Supported](https://support.xrex.io/en/articles/6317423-country-list-of-financial-institutions-supported.md): List of supported countries for the deposit & withdrawal of US dollars.
- [Risk Level Detector](https://support.xrex.io/en/articles/6572167-risk-level-detector.md): Easily check the risk level of users' deposit and withdrawal crypto addresses.
- [Why am I receiving a Uniform Invoice \(GUI\)?](https://support.xrex.io/en/articles/6907490-why-am-i-receiving-a-uniform-invoice-gui.md)

### Learning Portal

- [How does referral work?](https://support.xrex.io/en/articles/6039850-how-does-referral-work.md): Refer your friends and save money.
- [How to create a referral code?](https://support.xrex.io/en/articles/4722121-how-to-create-a-referral-code.md): Invite friends to earn up to 20% trade fee commission from all their trades.
- [How to open an XREX crypto-fiat exchange account using a referral code?](https://support.xrex.io/en/articles/5529024-how-to-open-an-xrex-crypto-fiat-exchange-account-using-a-referral-code.md): Receive a referral code and get exclusive benefits.
- [How to track my referrals?](https://support.xrex.io/en/articles/6039852-how-to-track-my-referrals.md): Get insights into your referral performance and earnings.
- [What is TRC20-USDT?](https://support.xrex.io/en/articles/5290056-what-is-trc20-usdt.md): Discover the stablecoin for the TRON network.
- [How does TRC20-USDT benefit me?](https://support.xrex.io/en/articles/5290051-how-does-trc20-usdt-benefit-me.md): Experience fast and affordable fund transfers with TRC20-USDT on XREX.
- [Which exchanges can I use to send TRC20-USDT to and from XREX?](https://support.xrex.io/en/articles/5290065-which-exchanges-can-i-use-to-send-trc20-usdt-to-and-from-xrex.md): Explore the growing list of exchanges that support TRC20 for your crypto transactions.
- [What’s the difference between TRC20-USDT and ERC20-USDT?](https://support.xrex.io/en/articles/5290059-what-s-the-difference-between-trc20-usdt-and-erc20-usdt.md): Compare USDT networks in terms of fees, transfer times, and network congestion.
- [How to deposit/withdraw TRC20-USDT?](https://support.xrex.io/en/articles/5290064-how-to-deposit-withdraw-trc20-usdt.md): Easily deposit and withdraw USDT using TRC20 on XREX with our step-by-step guide!
- [How do I know if an address is ERC20 or TRC20?](https://support.xrex.io/en/articles/5290062-how-do-i-know-if-an-address-is-erc20-or-trc20.md): Understand the key differences and how to ensure you're using the right chain address.
- [What is Blockchain?](https://support.xrex.io/en/articles/5765562-what-is-blockchain.md): Get familiar with the foundation of BTC and all the other cryptocurrencies!
- [What are stablecoins?](https://support.xrex.io/en/articles/5564739-what-are-stablecoins.md): Brief introduction about the two most used stablecoins - USDT and USDC.
- [Is Bitcoin safe?](https://support.xrex.io/en/articles/5765597-is-bitcoin-safe.md): Keep in mind these factors if you are looking into Bitcoin for your next investment.
- [What are Altcoins?](https://support.xrex.io/en/articles/6086351-what-are-altcoins.md): There are 17,000+ altcoins, learn more about them!
- [What is Ethereum?](https://support.xrex.io/en/articles/5765839-what-is-ethereum.md): Introduction to what is known as the second-biggest cryptocurrency in the world.
- [What are Gas fees?](https://support.xrex.io/en/articles/5765821-what-are-gas-fees.md): Find out more about the gas fees on the Ethereum network.
- [Proof of Work vs Proof of Stake: What's The Difference?](https://support.xrex.io/en/articles/5765834-proof-of-work-vs-proof-of-stake-what-s-the-difference.md): Two blockchain consensus algorithms, see what they do and how are they different!
- [What are Smart Contracts?](https://support.xrex.io/en/articles/5765827-what-are-smart-contracts.md): Explore the future of digital contracts and how they work on the blockchain.
- [What is a Dusting Attack?](https://support.xrex.io/en/articles/12618705-what-is-a-dusting-attack.md): Learn about dusting attacks and how to avoid phishing or scams
- [What is the relationship between XREX and Unitas Foundation?](https://support.xrex.io/en/articles/6652602-what-is-the-relationship-between-xrex-and-unitas-foundation.md): Changing cross-border payments with digital money.
- [What is USD1?](https://support.xrex.io/en/articles/6652658-what-is-usd1.md): Unitas stablecoin issued for the protocol’s sandbox phase.
- [What is USD91?](https://support.xrex.io/en/articles/6652662-what-is-usd91.md): Unitas stablecoin issued for the protocol’s sandbox phase.
- [What is USD971?](https://support.xrex.io/en/articles/6652665-what-is-usd971.md): Unitas stablecoin issued for the protocol’s sandbox phase.

### BitCheck

- [What is BitCheck?](https://support.xrex.io/en/articles/5447153-what-is-bitcheck.md): Send and receive BitChecks with only trusted and verified individuals or corporations.
- [Who is using BitCheck?](https://support.xrex.io/en/articles/5447169-who-is-using-bitcheck.md): For everyone looking for a secure, fast, inexpensive, and trusted payment guarantee.
- [What is Voucher BitCheck?](https://support.xrex.io/en/articles/6961884-what-is-voucher-bitcheck.md): Follow our step-by-step guide and create your first voucher.
- [How much are BitCheck fees?](https://support.xrex.io/en/articles/5447165-how-much-are-bitcheck-fees.md): BitCheck fees are ZERO during the promotion period!
- [How to use BitCheck?](https://support.xrex.io/en/articles/5447170-how-to-use-bitcheck.md): Easily complete escrowed transactions with other parties at any time from anywhere.
- [What is escrow and BitCheck?](https://support.xrex.io/en/articles/7174916-what-is-escrow-and-bitcheck.md): Learn about the best escrow transaction service eliminating counterparty risk.
- [What is BitCheck Contract?](https://support.xrex.io/en/articles/6385348-what-is-bitcheck-contract.md): Document your payment arrangement for BitCheck transactions.
- [How to use BitCheck Contract?](https://support.xrex.io/en/articles/6382334-how-to-use-bitcheck-contract.md): Follow step-by-step instructions to learn how to create and benefit from contracts.
- [What is the BitCheck Contract fee?](https://support.xrex.io/en/articles/6308916-what-is-the-bitcheck-contract-fee.md): Free of charge during our promotional period.
- [How is my personal information being shared via BitCheck Contract?](https://support.xrex.io/en/articles/6382325-how-is-my-personal-information-being-shared-via-bitcheck-contract.md): Understand the information shared between you and your BitCheck receiver.
- [What are Jurisdiction and Choice of Laws?](https://support.xrex.io/en/articles/6336320-what-are-jurisdiction-and-choice-of-laws.md): Important information on the use of BitCheck Contracts.

### Earn

- [What are XREX Rewards?](https://support.xrex.io/en/articles/6219632-what-are-xrex-rewards.md): A safer and simpler way to earn passive income on your crypto holdings.
- [How much can XREX Global users earn from XREX Rewards?](https://support.xrex.io/en/articles/6219643-how-much-can-xrex-global-users-earn-from-xrex-rewards.md): Stake and earn up to 9%\* annualized rewards on your USDT.
- [Duration, fees, and redeem period for XREX Global Rewards](https://support.xrex.io/en/articles/6219661-duration-fees-and-redeem-period-for-xrex-global-rewards.md): General instructions and staking information.
- [What is staking?](https://support.xrex.io/en/articles/6034478-what-is-staking.md): Learn about crypto staking and how does it work.
- [What is XREX Earn?](https://support.xrex.io/en/articles/6219599-what-is-xrex-earn.md): Maximize your passive income: Stake USDT and get recurring rewards on XREX Earn!
- [How can I earn rewards through staking?](https://support.xrex.io/en/articles/6034487-how-can-i-earn-rewards-through-staking.md): The rewards will be credited daily and directly into your XREX Global wallet.
- [What’s different between XREX Global rewards and DeFi staking?](https://support.xrex.io/en/articles/6219602-what-s-different-between-xrex-global-rewards-and-defi-staking.md): Consider these factors before deciding where to stake your assets.

### XREX Clubs

- [What are XREX Clubs?](https://support.xrex.io/en/articles/6174392-what-are-xrex-clubs.md): Stake and trade together to earn money and save fees!
- [What are the benefits of being a Club owner?](https://support.xrex.io/en/articles/6220345-what-are-the-benefits-of-being-a-club-owner.md): Act as ambassadors for new user onboarding and handholding.
- [What are the benefits of being a Club member?](https://support.xrex.io/en/articles/6220354-what-are-the-benefits-of-being-a-club-member.md): Join a trustworthy and credible community, handheld by experienced experts.
- [How to create a Club?](https://support.xrex.io/en/articles/6219559-how-to-create-a-club.md): Verify and complete an application to get started.
- [How to invite users to your XREX Club?](https://support.xrex.io/en/articles/6219560-how-to-invite-users-to-your-xrex-club.md): Encourage new members to earn higher rewards and save together on trading fees.
- [How to join a Club?](https://support.xrex.io/en/articles/6219566-how-to-join-a-club.md): Club membership is exclusive but the benefits are inclusive!
- [Can a company create a Club?](https://support.xrex.io/en/articles/6219574-can-a-company-create-a-club.md): Follow a few simple steps to get started.
- [Can an individual create a Club?](https://support.xrex.io/en/articles/6219573-can-an-individual-create-a-club.md): Follow a few simple steps to get started.

### Proof of User Digital Asset Balance

- [What is Proof of User Digital Asset Balance?](https://support.xrex.io/en/articles/6799295-what-is-proof-of-user-digital-asset-balance.md): View or download it any time for secure and transparent self-verification.
- [What is the XREX Merkle Tree?](https://support.xrex.io/en/articles/6799307-what-is-the-xrex-merkle-tree.md): Encrypted data structure of user asset balances.
- [How does XREX perform audits?](https://support.xrex.io/en/articles/6799405-how-does-xrex-perform-audits.md): Find the latest version to check the total user digital asset balance.
- [How to verify if your balance is covered in The Merkle Tree?](https://support.xrex.io/en/articles/6799312-how-to-verify-if-your-balance-is-covered-in-the-merkle-tree.md): XREX users can self-verify that your digital asset balances are covered in the Merkle tree.

### Non-Fungible Token \(NFT\)

- [What is an NFT?](https://support.xrex.io/en/articles/6067720-what-is-an-nft.md): Understanding the basics of unique digital items.
- [What can I do with my NFT?](https://support.xrex.io/en/articles/6067731-what-can-i-do-with-my-nft.md): Explore the basics of unique digital items.
- [How can I sell my NFT?](https://support.xrex.io/en/articles/6067738-how-can-i-sell-my-nft.md): Not available at this moment of time.
- [Risk Disclosure and Disclaimer \(NFT Marketplace\)](https://support.xrex.io/en/articles/6707399-risk-disclosure-and-disclaimer-nft-marketplace.md)

### About XREX Inc.

- [What is XREX as a brand?](https://support.xrex.io/en/articles/5459522-what-is-xrex-as-a-brand.md): Keen to serve everyone and to ensure that no one is left behind.
- [What can I do with XREX solutions and services?](https://support.xrex.io/en/articles/5459523-what-can-i-do-with-xrex-solutions-and-services.md): No more high fees, dollar crunch, cash flow shortages, and fear of being scammed.
- [Where is XREX located?](https://support.xrex.io/en/articles/5459528-where-is-xrex-located.md): XREX is a Taiwan-based startup headquartered in Taipei.
- [Who are XREX founders?](https://support.xrex.io/en/articles/5459531-who-are-xrex-founders.md): Together, we grow and go beyond.
- [Who are XREX AML and compliance partners?](https://support.xrex.io/en/articles/6039849-who-are-xrex-aml-and-compliance-partners.md): Compliance is a long run, and XREX will continue to be the lead runner.
- [Who are XREX investors?](https://support.xrex.io/en/articles/8231520-who-are-xrex-investors.md): XREX Inc. is invested by the Taiwan government, banks, prominent VCs, and reputed companies.
- [XREX Exchange’s Compliance and Cybersecurity Assurance](https://support.xrex.io/en/articles/11401913-xrex-exchange-s-compliance-and-cybersecurity-assurance.md): From regulatory compliance to cybersecurity — building a trustworthy trading environment.

### Legal

- [XREX General Terms and Conditions](https://support.xrex.io/en/articles/4125857-xrex-general-terms-and-conditions.md): General terms and conditions provide essential information for XREX users.
- [What is XREX Cookie Policy?](https://support.xrex.io/en/articles/4210036-what-is-xrex-cookie-policy.md): Learn about cookies, our responsible entity, and how to control your privacy settings.
- [What is XREX Privacy Policy?](https://support.xrex.io/en/articles/4210005-what-is-xrex-privacy-policy.md): Ensuring the security of your personal data and upholding your rights.
- [Deposit and Withdrawal Policy](https://support.xrex.io/en/articles/4209921-deposit-and-withdrawal-policy.md): XREX's policy for fiat and crypto transactions.
- [Anti-Money Laundering \(AML\) Policy](https://support.xrex.io/en/articles/4210045-anti-money-laundering-aml-policy.md): XREX's anti-money laundering policy and reporting requirements.
- [XREX Risk Disclosure Statement and Disclaimer](https://support.xrex.io/en/articles/6123900-xrex-risk-disclosure-statement-and-disclaimer.md): Read and understand XREX's risk disclosure statement and disclaimer before engaging in any transactions on our platform.
- [Current Order Cancellation and Amendment on XREX Trading Platform.](https://support.xrex.io/en/articles/10208728-current-order-cancellation-and-amendment-on-xrex-trading-platform.md): Learn more in-depth about XREX's order cancellation policy.
- [Overview of the Order Matching System.](https://support.xrex.io/en/articles/10208737-overview-of-the-order-matching-system.md): Learn more about how XREX matches your buy and sell orders.
- [Policy on the Collection, Processing, and Use of Personal Data](https://support.xrex.io/en/articles/10325605-policy-on-the-collection-processing-and-use-of-personal-data.md): Discover how XREX handles and safeguards your personal data.
- [User investment profile and product suitability](https://support.xrex.io/en/articles/11568880-user-investment-profile-and-product-suitability.md): Understand your risk tolerance and choose the right features.
- [How to apply for crypto withdrawal and BitCheck access?](https://support.xrex.io/en/articles/11678551-how-to-apply-for-crypto-withdrawal-and-bitcheck-access.md): Check if you are eligible to apply.

## 繁體中文

### 管理我的帳戶

- [如何建立 XREX 帳戶?](https://support.xrex.io/zh-TW/articles/4210053-如何建立-xrex-帳戶.md): 要建立一個 XREX 帳戶，只要驗證您的 email、手機號碼並設定密碼。過程僅需幾分鐘，您就可以開始使用了！
- [如何設定雙重驗證？](https://support.xrex.io/zh-TW/articles/5532315-如何設定雙重驗證.md): 啟動雙重驗證保障帳戶安全。
- [XREX 行動 APP 支援 Android 及 iOS 何種版本?](https://support.xrex.io/zh-TW/articles/5611432-xrex-行動-app-支援-android-及-ios-何種版本.md): 下載 XREX 應用程式，隨時隨地使用手機進行交易！
- [如何通過 XREX 個人身份驗證？](https://support.xrex.io/zh-TW/articles/5533700-如何通過-xrex-個人身份驗證.md): 跟隨教學指引，輕鬆通過身份驗證！
- [何謂身份驗證？對我有什麼幫助？](https://support.xrex.io/zh-TW/articles/4722267-何謂身份驗證-對我有什麼幫助.md): 通過身份驗證，開始使用 XREX 所有產品！
- [個人身份驗證要求哪些文件？](https://support.xrex.io/zh-TW/articles/4722279-個人身份驗證要求哪些文件.md): 了解身份驗證要求的文件，以加快驗證過程！
- [哪些文件被視為有效的居住地址證明（PoA）？](https://support.xrex.io/zh-TW/articles/5802014-哪些文件被視為有效的居住地址證明-poa.md): 一次搞懂可接受的地址證明文件。
- [什麼是「客戶定期審查」？](https://support.xrex.io/zh-TW/articles/13270233-什麼是-客戶定期審查.md)
- [欲申請企業帳戶？](https://support.xrex.io/zh-TW/articles/4722452-欲申請企業帳戶.md): 步驟指引、申請條件一次看！
- [欲申請印度企業帳戶？](https://support.xrex.io/zh-TW/articles/8893975-欲申請印度企業帳戶.md)
- [XREX 有妥善管理我的個人資料嗎？](https://support.xrex.io/zh-TW/articles/5519760-xrex-有妥善管理我的個人資料嗎.md): 安全且負責任的加密交易所。
- [什麼是雙重驗證碼 \(2FA\)？](https://support.xrex.io/zh-TW/articles/4725793-什麼是雙重驗證碼-2fa.md): 雙重驗證是一個重要的安全防護措施，可以防止您的帳戶受到危害。
- [如何在 XREX 中輸入雙重驗證代碼？](https://support.xrex.io/zh-TW/articles/5504771-如何在-xrex-中輸入雙重驗證代碼.md): 從 Google 驗證 App 中學習如何輸入雙重驗證代碼。
- [在沒有雙重驗證的情況下，進行加密貨幣交易安全嗎？](https://support.xrex.io/zh-TW/articles/4725801-在沒有雙重驗證的情況下-進行加密貨幣交易安全嗎.md): 開啟雙重驗證，為您的帳戶多添一層保護！
- [如何解除雙重驗證？](https://support.xrex.io/zh-TW/articles/9316985-如何解除雙重驗證.md): 按照步驟在 XREX App 上解除雙重驗證綁定
- [如何刪除我的 XREX 帳戶？](https://support.xrex.io/zh-TW/articles/5537057-如何刪除我的-xrex-帳戶.md): 步驟指南：關閉您的 XREX 帳戶。
- [如何啟用或停用 PIN 碼設定？](https://support.xrex.io/zh-TW/articles/9316999-如何啟用或停用-pin-碼設定.md): 啟用螢幕鎖定 PIN 碼來保護您的帳戶。
- [如何啟用或停用我的生物辨識？](https://support.xrex.io/zh-TW/articles/9317005-如何啟用或停用我的生物辨識.md): 開啟生物辨識登入來保護您的帳戶。

### 出金與入金

- [法幣與加密貨幣之入金手續費？](https://support.xrex.io/zh-TW/articles/4210061-法幣與加密貨幣之入金手續費.md)
- [法幣與加密貨幣之出金手續費？](https://support.xrex.io/zh-TW/articles/4722091-法幣與加密貨幣之出金手續費.md): XREX 出金服務目前支援美元（USD）、新臺幣（TWD）、比特幣（BTC）、以太幣（ETH）、美元穩定幣（USDT, USDC）、瑞波幣（XRP）及多種加密貨幣。
- [基本與尊榮額度](https://support.xrex.io/zh-TW/articles/4709555-基本與尊榮額度.md): 法幣與加密貨幣之出入金額度限制
- [其他服務費](https://support.xrex.io/zh-TW/articles/8540308-其他服務費.md)
- [什麼是託管銀行？](https://support.xrex.io/zh-TW/articles/10221227-什麼是託管銀行.md): 了解 XREX 合作的託管銀行
- [如何新增新臺幣銀行帳戶](https://support.xrex.io/zh-TW/articles/8140246-如何新增新臺幣銀行帳戶.md): 完成身分驗證並綁定銀行帳戶，即可享有快速且安全的交易體驗。
- [如何使用新臺幣入金 XREX 交易所？](https://support.xrex.io/zh-TW/articles/8140244-如何使用新臺幣入金-xrex-交易所.md): 跟隨 XREX 教學指南，輕鬆完成新臺幣入金 ！
- [如何調整新臺幣入金額度？](https://support.xrex.io/zh-TW/articles/8347267-如何調整新臺幣入金額度.md): 彈性入金、方便又快速。
- [如何新增美元銀行帳戶？](https://support.xrex.io/zh-TW/articles/6305844-如何新增美元銀行帳戶.md): 按照步驟，新增您的銀行帳戶！
- [如何將美元入金至 XREX 交易所？](https://support.xrex.io/zh-TW/articles/4721955-如何將美元入金至-xrex-交易所.md): 跟隨 XREX 教學指南，輕鬆完成美元入金 ！
- [如何將 BTC、USDT 和其他加密貨幣入金至 XREX 交易所？](https://support.xrex.io/zh-TW/articles/4764407-如何將-btc-usdt-和其他加密貨幣入金至-xrex-交易所.md): 跟隨 XREX 教學指南，輕鬆入金加密貨幣！
- [TRC20-USDT 入金教學](https://support.xrex.io/zh-TW/articles/7174943-trc20-usdt-入金教學.md): 輕鬆在 XREX 轉入 TRC20-USDT！
- [加密貨幣最小入金額度限制](https://support.xrex.io/zh-TW/articles/10345610-加密貨幣最小入金額度限制.md): 加密貨幣入金的最低門檻。
- [如何從 XREX 交易所進行新臺幣出金？](https://support.xrex.io/zh-TW/articles/8352250-如何從-xrex-交易所進行新臺幣出金.md): 跟隨 XREX 教學指南，輕鬆完成法幣出金 ！
- [如何從 XREX 交易所進行美元出金？](https://support.xrex.io/zh-TW/articles/4722024-如何從-xrex-交易所進行美元出金.md): 跟隨 XREX 教學指南，輕鬆完成法幣出金 ！
- [如何從 XREX 交易所提取比特幣、美元穩定幣以及其他加密貨幣？](https://support.xrex.io/zh-TW/articles/4721815-如何從-xrex-交易所提取比特幣-美元穩定幣以及其他加密貨幣.md): 跟隨 XREX 教學指南，輕鬆提取加密貨幣！
- [TRC20-USDT 出金教學](https://support.xrex.io/zh-TW/articles/7174932-trc20-usdt-出金教學.md): 輕鬆在 XREX 提領 TRC20-USDT！
- [如何在 XREX 查看您的交易紀錄？](https://support.xrex.io/zh-TW/articles/6006049-如何在-xrex-查看您的交易紀錄.md): XREX App 讓您隨時追蹤您的交易紀錄與訂單。
- [加密貨幣出入金需要多長時間？](https://support.xrex.io/zh-TW/articles/4764396-加密貨幣出入金需要多長時間.md): 加密貨幣出入金所需要的時間取決於區塊鏈。
- [支援金融機構](https://support.xrex.io/zh-TW/articles/6317423-支援金融機構.md): 目前支援在 XREX 進行出入金的國家／地區列表
- [風險等級偵測](https://support.xrex.io/zh-TW/articles/6572167-風險等級偵測.md): 協助您快速檢查出入金地址的小幫手。
- [為什麼我會收到統一發票 \(GUI\)？](https://support.xrex.io/zh-TW/articles/6907490-為什麼我會收到統一發票-gui.md)

### 入門指南

- [如何透過推薦碼得到獎勵？](https://support.xrex.io/zh-TW/articles/6039850-如何透過推薦碼得到獎勵.md): 推薦您的朋友加入 XREX 一起享優惠！
- [如何建立一個推薦碼？](https://support.xrex.io/zh-TW/articles/4722121-如何建立一個推薦碼.md): 使用您的 XREX 推薦碼賺取獎金，您的朋友最高可以獲得 20% 的手續費折扣。
- [如何使用推薦碼註冊 XREX 帳戶？](https://support.xrex.io/zh-TW/articles/5529024-如何使用推薦碼註冊-xrex-帳戶.md): 使用推薦碼加入 XREX 並獲得優惠！
- [如何追蹤我的推薦碼？](https://support.xrex.io/zh-TW/articles/6039852-如何追蹤我的推薦碼.md): 在 XREX 應用程式上，輕鬆查看所有的推薦碼。
- [什麼是 TRC20-USDT？](https://support.xrex.io/zh-TW/articles/5290056-什麼是-trc20-usdt.md): Tether 公司在 TRON 網路上發佈的美金穩定幣 \(USDT\)。
- [TRC20-USDT 有什麼好處？](https://support.xrex.io/zh-TW/articles/5290051-trc20-usdt-有什麼好處.md): 在 XREX 體驗快速且划算的資金轉帳！
- [我可以使用哪些交易所向 XREX 發送或收取 TRC20-USDT？](https://support.xrex.io/zh-TW/articles/5290065-我可以使用哪些交易所向-xrex-發送或收取-trc20-usdt.md): 目前支持 TRC20-USDT 的交易所列表。
- [TRC20-USDT 和 ERC20-USDT 有什麼差別？](https://support.xrex.io/zh-TW/articles/5290059-trc20-usdt-和-erc20-usdt-有什麼差別.md): 探索 TRC20-USDT 和 ERC20-USDT 的區別，該選擇哪個網路？
- [如何在 XREX 上使用 TRC20 進行 USDT 出入金？](https://support.xrex.io/zh-TW/articles/5290064-如何在-xrex-上使用-trc20-進行-usdt-出入金.md): 跟隨 XREX 教學指南，輕鬆使用 TRC20 提領 USDT！
- [我該如何判斷某個地址是 ERC20 還是 TRC20？](https://support.xrex.io/zh-TW/articles/5290062-我該如何判斷某個地址是-erc20-還是-trc20.md): 區塊鏈地址結構大不同，您是否有選擇正確地址呢？
- [什麼是區塊鏈？](https://support.xrex.io/zh-TW/articles/5765562-什麼是區塊鏈.md): 瞭解更多關於比特幣和所有其他加密貨幣背後的技術！
- [什麼是穩定幣？](https://support.xrex.io/zh-TW/articles/5564739-什麼是穩定幣.md): 簡要介紹兩種最常用的穩定幣 - USDT 和 USDC。
- [比特幣安全嗎？](https://support.xrex.io/zh-TW/articles/5765597-比特幣安全嗎.md): 如果您正在研究比特幣做為下一項投資，請記住這些要點。
- [什麼是 Altcoins？](https://support.xrex.io/zh-TW/articles/6086351-什麼是-altcoins.md): 現在有超過 17,000 種 Altcoins，您對他們了解嗎？
- [什麼是以太坊？](https://support.xrex.io/zh-TW/articles/5765839-什麼是以太坊.md): 簡單介紹世界上第二大加密貨幣。
- [什麼是礦工費？](https://support.xrex.io/zh-TW/articles/5765821-什麼是礦工費.md): 瞭解更多關於以太坊網路上礦工費的內容。
- [工作證明與權益證明： 區別何在？](https://support.xrex.io/zh-TW/articles/5765834-工作證明與權益證明-區別何在.md): 兩種區塊鏈共識演算法，看看它們的運作內容以及它們有什麼不同！
- [什麼是智能合約？](https://support.xrex.io/zh-TW/articles/5765827-什麼是智能合約.md): 智能合約是指在區塊鏈上執行的代碼。
- [什麼是粉塵攻擊？](https://support.xrex.io/zh-TW/articles/12618705-什麼是粉塵攻擊.md): 認識粉塵攻擊，避免落入釣魚或詐騙陷阱

### BitCheck

- [什麼是 BitCheck？](https://support.xrex.io/zh-TW/articles/5447153-什麼是-bitcheck.md): 在 XREX 使用最安全的第三方履約保證功能！
- [誰在使用 BitCheck？](https://support.xrex.io/zh-TW/articles/5447169-誰在使用-bitcheck.md): 每個尋求安全、快速、便宜且值得信賴之支付保證的人都適合！
- [什麼是兌換券？](https://support.xrex.io/zh-TW/articles/6961884-什麼是兌換券.md): 跟隨 XREX 教學指南，輕鬆創立兌換券！
- [BitCheck 的手續費是多少？](https://support.xrex.io/zh-TW/articles/5447165-bitcheck-的手續費是多少.md): BitCheck 推廣期間 0 手續費！
- [如何使用 BitCheck？](https://support.xrex.io/zh-TW/articles/5447170-如何使用-bitcheck.md): 跟隨 XREX 教學指南，輕鬆完成交易託管！
- [履約保證與 BitCheck 是什麼？](https://support.xrex.io/zh-TW/articles/7174916-履約保證與-bitcheck-是什麼.md): 保障雙方的最佳交易託管服務。
- [什麼是 BitCheck 合約？](https://support.xrex.io/zh-TW/articles/6385348-什麼是-bitcheck-合約.md): 在 BitCheck 紀錄您的交易安排。
- [如何使用 BitCheck 合約？](https://support.xrex.io/zh-TW/articles/6382334-如何使用-bitcheck-合約.md): 跟隨 XREX 教學指南，在您的 BitCheck 附加合約，有效防止欺詐！
- [BitCheck 合約有手續費嗎？](https://support.xrex.io/zh-TW/articles/6308916-bitcheck-合約有手續費嗎.md): BitCheck 推廣期間 0 手續費！
- [BitCheck 合約會分享我的何種個人資訊？](https://support.xrex.io/zh-TW/articles/6382325-bitcheck-合約會分享我的何種個人資訊.md): 了解您和 BitCheck 接收方之間共享的資訊。
- [什麼是管轄權與準據法？](https://support.xrex.io/zh-TW/articles/6336320-什麼是管轄權與準據法.md): 使用 BitCheck 合約的重要須知。

### XREX 俱樂部

- [何謂 XREX 俱樂部？](https://support.xrex.io/zh-TW/articles/6174392-何謂-xrex-俱樂部.md): 發揮社群力量，交易越多，賺越多！
- [擔任一個俱樂部的管理者有什麼益處？](https://support.xrex.io/zh-TW/articles/6220345-擔任一個俱樂部的管理者有什麼益處.md): 成為 XREX 品牌大使，享受更多回饋，更少交易手續費！
- [作為一名俱樂部的成員有什麼益處？](https://support.xrex.io/zh-TW/articles/6220354-作為一名俱樂部的成員有什麼益處.md): 一起質押、一起交易；賺取獎勵，節省手續費！
- [如何創立俱樂部？](https://support.xrex.io/zh-TW/articles/6219559-如何創立俱樂部.md): 完成身份驗證，開始創立您的 XREX 俱樂部！
- [如何邀請用戶參加您的 XREX 俱樂部](https://support.xrex.io/zh-TW/articles/6219560-如何邀請用戶參加您的-xrex-俱樂部.md): 加入俱樂部，享有專屬福利！
- [如何加入俱樂部？](https://support.xrex.io/zh-TW/articles/6219566-如何加入俱樂部.md): 快來加入俱樂部，一起享有專屬福利！
- [企業可以開創俱樂部嗎？](https://support.xrex.io/zh-TW/articles/6219574-企業可以開創俱樂部嗎.md): 人人都可以擔任 XREX 品牌大使！
- [個人可以開創俱樂部嗎？](https://support.xrex.io/zh-TW/articles/6219573-個人可以開創俱樂部嗎.md): 人人都可以擔任 XREX 品牌大使！

### 用戶數位資產總數證明

- [什麼是用戶數位資產總數？](https://support.xrex.io/zh-TW/articles/6799295-什麼是用戶數位資產總數.md): 一個安全且透明的自我驗證系統。
- [XREX Merkle Tree 是什麼？](https://support.xrex.io/zh-TW/articles/6799307-xrex-merkle-tree-是什麼.md): 用戶資產餘額的加密數據結構。
- [XREX 如何進行稽核驗證？](https://support.xrex.io/zh-TW/articles/6799405-xrex-如何進行稽核驗證.md): 利用最新版本來確認總用戶數位資產餘額。
- [如何驗證我的資產是否涵蓋在 Merkle Tree 中？](https://support.xrex.io/zh-TW/articles/6799312-如何驗證我的資產是否涵蓋在-merkle-tree-中.md): XREX 用戶可以自行驗證您的資產餘額是否包含在 Merkle Tree 中。

### NFT（非同質化代幣）

- [何謂 NFT（非同質化代幣）？](https://support.xrex.io/zh-TW/articles/6067720-何謂-nft-非同質化代幣.md): 獨一無二的幣圈藝術品。
- [擁有 NFT 我可以做什麼？](https://support.xrex.io/zh-TW/articles/6067731-擁有-nft-我可以做什麼.md): 探索另一種區塊鏈技術產生的獨特物件。
- [我要如何出售我的 NFT？](https://support.xrex.io/zh-TW/articles/6067738-我要如何出售我的-nft.md): NFT 提領服務架構中，敬請期待。
- [XREX NFT Marketplace 風險揭露暨免責聲明](https://support.xrex.io/zh-TW/articles/6707399-xrex-nft-marketplace-風險揭露暨免責聲明.md): 本風險揭露暨免責聲明僅闡述可能的部分風險。

### 關於 XREX

- [XREX 是什麼樣的品牌？](https://support.xrex.io/zh-TW/articles/5459522-xrex-是什麼樣的品牌.md): XREX 樂於為每個人提供服務，並確保用戶擁有美好的交易體驗。
- [我可以用 XREX 做些什麼？](https://support.xrex.io/zh-TW/articles/5459523-我可以用-xrex-做些什麼.md): XREX 讓您遠離高額手續費、美元緊縮、現金流短缺和被騙的恐懼！
- [XREX 公司位於哪裡？](https://support.xrex.io/zh-TW/articles/5459528-xrex-公司位於哪裡.md): XREX 是一家總部位在臺北的臺灣新創企業。
- [XREX 的創始人是誰？](https://support.xrex.io/zh-TW/articles/5459531-xrex-的創始人是誰.md): 讓我們共同成長、共同超越。
- [XREX 的洗錢防制與合規性合作夥伴有哪些？](https://support.xrex.io/zh-TW/articles/6039849-xrex-的洗錢防制與合規性合作夥伴有哪些.md): 法遵是一場長跑，XREX 將是這個漫長道路上的領跑者。
- [誰是 XREX 的投資人？](https://support.xrex.io/zh-TW/articles/8231520-誰是-xrex-的投資人.md): XREX 的投資人包括台灣國發基金、銀行、國際創投與知名企業。
- [XREX 交易所的合規與資安保障](https://support.xrex.io/zh-TW/articles/11401913-xrex-交易所的合規與資安保障.md): 從法遵到資安，打造值得信賴的交易環境。

### 法律與政策相關

- [XREX 一般條款與細則](https://support.xrex.io/zh-TW/articles/4125857-xrex-一般條款與細則.md)
- [XREX 的 Cookie 政策](https://support.xrex.io/zh-TW/articles/4210036-xrex-的-cookie-政策.md): 了解關於 Cookies 以及您的隱私權和安全性設定。
- [XREX 的隱私政策](https://support.xrex.io/zh-TW/articles/4210005-xrex-的隱私政策.md): 請詳閱隱私權相關政策以確保您個人資料的安全並保護您的權利。
- [XREX 的入金與出金政策](https://support.xrex.io/zh-TW/articles/4209921-xrex-的入金與出金政策.md): XREX 針對法幣及加密貨幣所訂定之規則。
- [洗錢防制政策](https://support.xrex.io/zh-TW/articles/4210045-洗錢防制政策.md): 了解有關 XREX 的洗錢防制與打擊資恐政策
- [XREX 風險揭露與免責聲明](https://support.xrex.io/zh-TW/articles/6123900-xrex-風險揭露與免責聲明.md): 使用本平台服務前，請詳閱 XREX 風險揭露與免責聲明
- [當前交易訂單取消及修正](https://support.xrex.io/zh-TW/articles/10208728-當前交易訂單取消及修正.md): 深入了解 XREX 的訂單取消政策。
- [委託單撮合機制介紹](https://support.xrex.io/zh-TW/articles/10208737-委託單撮合機制介紹.md): 了解 XREX 如何撮合您的買入及賣出訂單
- [蒐集、處理與利用個人資料告知事項](https://support.xrex.io/zh-TW/articles/10325605-蒐集-處理與利用個人資料告知事項.md): 了解 XREX 如何使用與維護您的個人資料。
- [用戶投資屬性與商品適合度](https://support.xrex.io/zh-TW/articles/11568880-用戶投資屬性與商品適合度.md): 瞭解您的風險承受度，精準選擇產品功能
- [加密貨幣出金與平台內部移轉（BitCheck）功能開通條件及申請方式](https://support.xrex.io/zh-TW/articles/11678551-加密貨幣出金與平台內部移轉-bitcheck-功能開通條件及申請方式.md): 查看您是否符合申請資格