Your search for "pwr-400w-ac" revealed the following:
Cisco PWR-4430-POE-AC ISR 4000 Series 500W AC Power Supply w/ PoE Module
SKU: NSH-6528
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Cisco PWR-4450-POE-AC ISR 4000 1000W AC Power Supply w/ PoE Module
SKU: NSH-6529
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7020SR-32C2-F 32x 10GB SFP+ 2x 100GB QSFP F-B Airflow Switch
SKU: NSN-6773
Condition: New
Shipping: Overnight Options
Warranty: 365 days