Cisco N9K-PAC-650W-B 650W AC B-F Airflow (Port-Side Exhaust) Power Supply

The Cisco N9K-PAC-650W-B is a 650W AC hot-swap power supply for first-generation Nexus 9300 switches. It is the port-side exhaust version, so air moves back-to-front through the switch, and Cisco marks it with a blue handle.

It fits the Nexus 9332PQ, 9372PX, 9372PX-E, 9372TX, 9372TX-E, 9396PX, and 9396TX. Each of these switches takes two power supplies in a 1+1 redundant arrangement, so a spare lets you restore redundancy without downtime. The supply is rated 80 Plus Platinum for efficiency and weighs about 2.42 pounds. Spare power supplies are among the most common replacement parts for Nexus 9300 switches, since a single failed unit removes the switch's power redundancy.

All power supplies and fans in a Nexus switch need to move air the same way. Pair this unit with back-to-front fans and a second back-to-front power supply, and use the port-side intake N9K-PAC-650W only in switches set up for front-to-back cooling.

This supply works in the Cisco N9K-C9332PQ 32x 40GB QSFP+ switch and the Cisco N9K-C9372PX 48x 10GB SFP+ 6x 40GB QSFP+ switch, both available from NetworkTigers. Check the airflow direction of your switch before ordering so the replacement matches the fans already installed.

This seller refurbished Cisco N9K-PAC-650W-B is tested, working, and covered by the NetworkTigers one-year warranty.