You send: USD Coin (Algorand)
USD Coin (USDC) is a dollar-pegged stablecoin issued by Circle and backed by cash and short-term US Treasuries. Like USDT it exists on several networks, each with its own address format and fees. More about USD Coin.
On this pair it moves over Algorand — an address there 58 characters, capital letters and digits. This network uses a memo / destination tag for deposits to shared wallets.
USDC also exists on other networks — different addresses, not interchangeable: Aptos, Arbitrum, Avalanche, Base, Celo.

