Earnings Beyond Saving: Earn Interest on Bitfinex, Spend with Ether.fi

After earning steady interest through crypto lending on Bitfinex, many users begin to wonder: how can on-chain yields be seamlessly converted into real-world purchasing power? This is where Ether.fi’s Cash Card offers a concrete and innovative solution.
As the world’s first DeFi-native credit card, the Ether.fi Cash Card allows you to spend the interest earned on Bitfinex directly—without needing a bank or centralized platform. This article introduces the card’s features and provides a step-by-step guide to help you transfer USDC from Bitfinex to your Ether.fi wallet, enabling a full-circle experience of “on-chain earnings, real-world spending.”
What Is the Ether.fi Cash Card?
The Ether.fi Cash Card is the first truly “DeFi-native” credit card, designed to allow users to pay for everyday purchases with crypto—without going through centralized intermediaries. Unlike traditional crypto cards that often require assets to be custodied by third parties, the Ether.fi card supports non-custodial wallets, meaning users maintain full control of their private keys and assets.
The Ether.fi team has also optimized the user experience: once issued, the card can be added to Apple Pay or Google Pay. Whether shopping online or at physical stores, you can use crypto assets like USDC and ETH directly, avoiding the hassle of converting to fiat and paying extra fees.
Key Features and Highlights
- Three-in-One Functionality: Combines saving, earning, and spending in a single product. You can hold crypto, earn yield, and spend conveniently.
- Up to 3% Cashback: Earn cashback in SCR for purchases paid in USDC. Rewards are returned instantly and can be swapped for other assets.
- Two Flexible Payment Modes: Choose between Direct Pay and Borrow Mode to suit your asset management preferences.
- Non-Custodial and Globally Accepted: Compatible with the Mastercard network and major mobile payment platforms—giving you both autonomy and usability.
How to Apply and Use the Card
- Register for an Ether.fi account and complete KYC verification.
- Choose between a virtual or physical card, depending on your needs.
- Connect your non-custodial wallet and add the card to Apple Pay or Google Pay.
- Select your preferred payment mode during checkout—your balance will automatically continue earning yield.
How to Withdraw USDC from Bitfinex to Ether.fi
Before You Start
- Ether.fi does not support deposits in USDT. You’ll need to convert your assets to USDC before withdrawing.
- Since Bitfinex only supports USDC withdrawals via the ERC-20 network, make sure to obtain an ERC-20 receiving address from your Ether.fi wallet.
Step-by-Step Guide
- Log into Bitfinex and navigate to “Wallet” > “Withdraw.”
- Select USDC and choose the Ethereum (ERC-20) network.
- Paste your Ether.fi wallet’s receiving address.
- Enter the amount and check the transaction fee.
- Complete 2FA and email verification.
- Wait for the on-chain transaction to complete (typically 2–20 minutes).
Important Notes and Risk Reminders
- For your first transfer, it’s recommended to test with a small amount before sending larger sums.
- Double-check the address and network settings to avoid loss of funds.
- After the transfer, take a screenshot or record the transaction hash (TxHash) for future reference.
Conclusion
The Ether.fi Cash Card delivers a revolutionary “crypto-as-payment” experience—blending yield generation with real-world utility and rewards. By linking Bitfinex’s interest-earning features with Ether.fi’s seamless spending, users can now “earn interest on-chain and spend USDC in real life.” Follow the guide above to smoothly transfer your assets from Bitfinex to Ether.fi and start your new era of crypto-powered spending.

