A stablecoin is a crypto token designed to hold a steady value, usually pegged one-to-one to a currency such as the US dollar. USDT (Tether) is one of the most widely used.Because the price stays close to a dollar, stablecoins are popular for funding investment accounts: you know how much value you are sending, and transfers can be fast and inexpensive.Using USDT safely. Always confirm the network (for example TRC20 or ERC20) matches the address you are sending to; sending on the wrong network can mean permanent loss. Send a small test amount first, copy addresses rather than typing them, and keep your transaction hash for reference.When you deposit with USDT on Invest Pro, you will submit the transaction hash and a screenshot, and your balance is credited once the payment is confirmed.