Components Internal PC Cables Startech 20cm 24 Pin Atx 2.01 Power Extension Cable Black. Connections : 4 Pins The ATX 2.01 power extension cable lets you to extend the length of an ATX power supply connection.Providing 8-inches of cable length, the cable allows you to position ...Components Internal PC Cables Startech 20cm 24 Pin Atx 2.01 Power Extension Cable Black. Connections : 4 Pins The ATX 2.01 power extension cable lets you to extend the length of an ATX power supply connection.Providing 8-inches of cable length, the cable allows you to position your internal components as needed within the system case without having to strain the ATX or motherboard connections.