Your search for "r2x0-psu2-650w-sb" revealed the following:
Cisco R2X0-PSU2-650W-SB UCS Series 650W AC Server Power Supply
SKU: NSH-5982
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 39.99
• Only 2 remaining
Call if you need more
NEW Cisco R2X0-PSU2-650W-SB UCS Series 650W AC Server Power Supply
SKU: NSN-9607
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 42.99
• Only 2 remaining
Call if you need more