DPS-2000 + breakout board + S4's cables. You'll have to check if the breakout board has a limit per wire channel, I don't remember one.
Ohh dog-ie. You produce a pure loss for your owner Bitmain with your barking. BITMAIN AntMiner APW3-12-1600 PSU Series hat is own separate power board to connect the PCI-E cables with S4 cables.Named S4 Power_Board V1.0
