USDT on the TRON network, known as TRC20, is a go-to way to fund a virtual card because the network fees are tiny and confirmations are quick. The credit drops onto your balance ready to spend.
Why TRC20
Sending USDT over TRC20 usually costs a sliver of what other networks charge and confirms within minutes. For regular top-ups, that keeps more of your money on the card and less burned on fees.
How the top-up runs
Open your account, pick USDT and the TRON network, and send to the address shown. Make sure your wallet is actually sending on TRC20, not some other network, so the funds land where they should.
Matching the network
Always confirm the network on both ends. USDT lives on several chains, and sending on a network the deposit address does not support can delay or misroute your funds.
Turning credit into a card
Once the deposit confirms, issue a card and set its ceiling. The card spends your USDT credit, and you can spin up several cards off one top-up, each capped separately.