A good Power Supply Unit (or “PSU”) provides enough power to run a compatible device but won’t overload its sensitive electronics. The Dell XN7P4 Power Supply is specially designed to complement your Dell Networking (PowerSwitch) N4000 or (PowerConnect) 8164 Switch, delivering 460?W of reliable power. This is a Standard Airflow PSU. This Dell XN7P4 Power Supply has been removed from a working Dell Networking Switch, tested for complete functionality by our expert in-house Certified Technician, and is ready to ship today! Purchase with confidence, as the photos above represent the exact quality of your items, and come bundled with our 90 Day Warranty. *Please note, we have additional refurbished Dell Networking Switch Components in stock; feel free to send a message and we will update the quantity to suit your specific needs.* Thank you for choosing AltaTech for all of your lightning-fast IT needs!