Startechcom heavy duty computer power cables startechcom pxtc19c20143 this startechcom c19 to c20 power cable from startechcom features 16mm diameter wire thats suitable for high power connections making it perfect for server application and connecting to a power distribution unit pdu alternatively you can use the cable to extend the reach of your existing power cable which gives you the extra distance you need to place your devices according to your server room configuration b