Your search for "c3kx-pwr-1100wac/2" revealed the following:
Cisco C3KX-PWR-1100WAC/2 Catalyst 3750X Series 1100W AC Switch Power Supply
SKU: NSH-2483
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 29.99
• Only 2 remaining
Call if you need more