A quick note that we now support Dogecoin (DOGE), Bitcoin Cash (BCH), and Litecoin (LTC), thereby taking the number of cryptocurrencies users can convert, deposit, and withdraw on BitMEX to over 30. The number of networks supported by BitMEX has also grown to include the Dogecoin, Bitcoin Cash, and Litecoin chains. What is Bitcoin Cash (BCH)? Bitcoin Cash (BCH) is a peer-to-peer electronic cash system. While similar to Bitcoin, a difference between Bitcoin Cash and Bitcoin is their block size limit; the maximum block size of Bitcoin is up to 4MB, whereas the maximum block size of Bitcoin Cash is 32MB.