APC AP 7821 Metered Rack Mount PDU / Fully Tested & Working. Fully Tested & Working. Web interface and front of PDU LCD display shows the total load. Individual load and statistics available via the web interface. 1x C20 input (larger square connector). 8x C13 output (normal D type kettle plug). 16A Max current / power. Refurbished unit, fully working. Includes rackmount ears and cable tie attachment. Maximum Total Current Draw. Regulatory Derated Input Current (North America).