Tron is a blockchain whose native currency is TRX. A casino player meets Tron mainly through TRC-20: Tron's token standard, on which a large share of crypto casinos' USDT deposits and withdrawals move. An overview is on Wikipedia and transactions can be viewed on Tronscan.
Why Tron is common at casinos
Tron's blocks come every few seconds and an ordinary USDT transfer generally costs less than on Ethereum's main chain. For the casino that means quick crediting, for the player a predictable cost. That is why "USDT TRC-20" is the first choice in many cashiers.
How Tron fees work
On Tron fees are not paid the way they are on Bitcoin or Ethereum. The network uses two resources:
- Bandwidth — the transaction's data size. Each account has a small free daily allowance.
- Energy — the execution of a smart contract, which a TRC-20 transfer needs. If the account has no energy, TRX is burned to pay for it.
In practice this means that to send USDT the wallet must also hold a little TRX. Without it you cannot make the transfer, even with enough USDT. This is a beginner's most common obstacle. When sending from an exchange, the exchange pays the fee itself and includes it in its withdrawal fee.
Tron and casino withdrawals
If the casino pays out on the TRC-20 network, check that your destination address is a Tron address (it usually starts with the letter T) and that the destination — exchange or wallet — supports TRC-20 USDT. A TRC-20 transfer sent to an Ethereum address will not arrive. The difference between networks is explained in the post TRC-20 vs ERC-20.
Risks
- The wrong network is the biggest risk: same coin name, different chain.
- Address poisoning is widespread among Tron USDT users — an attacker sends zero-value transactions from an address that starts similarly, hoping you will copy the wrong address from your history next time. See address poisoning.
- Tron has fewer validators than Bitcoin or Ethereum, which some analysts regard as a centralisation risk. For casino payments this is background knowledge rather than an everyday problem.