What is Multi-protocol USDT?

What is Multi-protocol USDT?？
Multi-protocol coin refers to the coin that supports multiple public chain in different protocols. The most commonly used multi-protocol coin is USDT. Currently USDT has supported three public chains, namely: USDT-ERC20 (based on Ethereum network), USDT-TRC20 (based on TRON network), USDT-Omni (based on Bitcoin network). To meet users' growing needs for Stablecoin trading,  CoinEx supports USDT deposit/withdrawal in three protocol types: USDT-ERC20 and USDT-TRC20 (USDT-TRON) and USDT-CoinExChain:

USDT-ERC20
USDT-ERC20 is the USDT issued by Tether based on the ETH network. Its deposit address is the ETH address and its deposit and withdrawal use the ETH network. The protocol of USDT-ERC20 is the ERC20 protocol.
Official website  | Explorer  | Whitepaper
Note: USDT-ERC20 address starts with “0x”

USDT-TRC20
USDT-TRC20 (USDT-TRON) is the USDT issued by Tether based on the TRON network. The currency deposit address is the TRON address, and the recharge and withdrawal will be taking place on the TRON network. The USDT-TRC20(USDT-TRON) uses the TRC20 protocol.
Official website | Explorer | Whitepaper
Note: USDT-TRC20 address starts with "T"

USDT-CoinEx Chain
USDT-CoinExChain is the USDT issued by CoinEx Chain Network, sharing the same CET deposit address and circulated on the CoinEx Chain Network for its deposit & withdrawal. 
Official Website Explorer
Note: USDT-CoinEx Chain address starts with "coinex"

Attention
1. Please generate USDT deposit address first and make deposits according to your USDT protocol type
2. Before deposit, please confirm your USDT protocol type first.
3. Before withdrawal, please confirm your USDT protocol type and MIN. deposit limit on the recipient platform first.