USDT on Tron and USDT on Solana
It is the same USDT on either side, but not the same object: what you send lives in Tron's ledger, and what you receive is issued separately on Solana.
Worth checking before you send: on Tron the token is TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t, and the USDT you receive on Solana is Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB.
Tron needs a single confirmation before Cambio releases your USDT; on this corridor the wait is the Solana payout, not the deposit.
People move a dollar token between chains to reach something only one side has: a protocol, an exchange deposit, or a cheaper onward transfer. Cambio does it as a swap — send USDT on Tron, receive USDT on Solana, no account.