To transfer assets to BSC, you will have to use the Binance Bridge.

Step 1: Go to Binance Bridge.

Step 2: Connect your wallet.

 
 

Step 3: Select the asset you want to migrate (e.g. ETH or USDT).

 
 

Step 4: Select the network you want to transfer from (i.e. Ethereum) and network you want to transfer to (i.e. BSC)

 
 

Step 5: Select the amount of tokens you want to migrate and confirm the transaction. (You will have to pay a transaction fee.)

 
 

Step 6: Be sure to wait for the transaction to confirm.