Equihash has always been a popular Proof of Work mining algorithm noted since 2016. The main goal of its developers is to get rid of ASICs in the mining network, as they threaten decentralization because of the high concentration of computing power. Together with Ethash algorithm Equihash was a driver of the GPU mining community. The most popular coins on this algorithm are Zcash, Horizen and Komodo. Moreover, Equihash has set the stage for new algorithms, like Equi 125-4, 144-5, etc.
In the year 2018 a lot of companies have released ASIC miners for Equihash including Bitmain and Inosilicon. At the moment there are no graphics cards on Equihash as it is not profitable at all. We recommend using only ASIC devices for Equihash mining.