PCI-E 6-Pin to (3) 2.1mm DC Barrel Plug for Gridseed ASIC Miner Connect your ATX power supply to multiple Gridseed ASIC Miners Each cable includes 3 wires to 2.1mm DC barrel plugs! Each wire is over 3ft / 1 meter long for easy use! BuyAHash is the exclusive fabricator and vendor of this item.