The Cisco UCSC-PSU2V2-650W 650W V2 AC Power Supply is a used power supply unit designed for 2U C-Series servers manufactured by Cisco. It provides 650W of power to ensure reliable and efficient operation of the server. This power supply unit is a second version (V2) of the Cisco UCSC-PSU2-650W power supply and offers improved efficiency and better performance compared to the previous version. The unit has been previously used but has been tested and certified to be in good working condition, making it a cost-effective option for those looking to upgrade or replace their existing power supply unit.