Bitcoin cash

In August 2017, the Bitcoin blockchain spun off a more nimble iteration called Bitcoin Cash. It's essentially identical to Bitcoin, but with the important distinction that it has more block size capacity.
The biggest reason Bitcoin cash was created because of Bitcoin scalability limitation.
Let me make it simple for you. Bitcoin transactions are completed when a "block" is added to the blockchain. A full 1Mb Bitcoin block generally contains around 2000 transactions and generally takes around ten minutes to process.
If you compare this to the 2,000 transactions per second that Visa can handle, you can see how scaling has been holding Bitcoin back.
Hence, Bitcoin Cash is a solution to the Bitcoin scalability problem. It increases the block size to 8Mb.
Bitcoin Cash has a market cap of $11,361,359,620, and 1 unit costs around 1600$ which is triple of its launch price. So for those who missed the opportunity to grab Bitcoin when it was below 1000$.
Bitcoin cash provides the second opportunity for them to invest in "future Bitcoin" and one of the top cryptocurrency to invest besides bitcoin in 2018