USDT (Tether) is a stablecoin pegged to the US dollar, meaning its value remains close to $1. It is issued by Tether Limited and operates on multiple blockchain networks, including Solana, Ethereum, Tron, and Binance Smart Chain. USDT is widely used for trading, remittances, and hedging against crypto volatility. Unlike traditional cryptocurrencies, it is backed by reserves, which Tether claims include cash, cash equivalents, and other assets. It enables fast and low-cost transactions compared to traditional banking. Many crypto exchanges support USDT as a base trading pair. It plays a key role in DeFi, providing liquidity for lending and borrowing. USDT is often criticized for lack of transparency regarding its reserves. Despite controversies, it remains the most popular stablecoin by market capitalization. Its stability makes it a preferred choice for traders and investors.