You send: USD Coin (CELO)
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 Celo — an address there starts with 0x — 42 characters.
USDC also exists on other networks — different addresses, not interchangeable: Algorand, Arbitrum, Avalanche, BEP20, Base.

