20A C20-to-C21 Power Cable for Network Devices That Require a Heavy-Gauge Connection This heavy-duty cord features 12 AWG wire suitable for high power connections, making it a reliable solution for large server applications that require a higher-rated, heavier-gauge cable. This cord can be used to connect a blade server, large router or network switch with a C22 inlet, usually found on high-powered, high-temperature (maximum pin 155°C/311°F) equipment, to a PDU or UPS system. It’s an ideal choice for upgrading or replacing the standard power cord provided by the device’s manufacturer. The six-foot (1.8-meter) length allows you flexibility in placing equipment with respect to the power outlet.