GPU hardware set up to mine cryptocurrencies that use proof-of-work such as Ethereum Classic and Ravencoin. GPU mining rigs are typically constructed from mining rig cases that include a power supply and a number of card slots. See
crypto mining and
ASIC miner.
A GPU Mining Rig
MINERDUDE hardware provides the case, power supply, fans and slots for GPUs. In this example, eight GPU cards can operate simultaneously. (Image courtesy of MINERDUDE.)