TRC20 runs on the TRON blockchain with low fees (under $1 per transfer) and fast speeds. ERC20 runs on Ethereum with higher gas fees ($5–$25+) but provides access to the full DeFi ecosystem. Both USDT TRC20 and ERC20 are pegged 1:1 to the US dollar.

Use a reputable centralized exchange: deposit via TRC20 and withdraw via ERC20 (or vice versa). Alternatively, use a cross-chain bridge like Symbiosis Finance or ChangeNOW. Always verify the destination address and network before confirming any transaction.

In most cases, the funds become inaccessible or permanently lost. If sent to a centralized exchange, contact support immediately with your TXID. For self-custody wallets with the same seed phrase, import keys into a TRON-compatible wallet. Prevention through verification is the only reliable safeguard.