Your search for "N55-PAC" revealed the following:
Cisco N55-PAC-1100W-B 1100W AC Front-to-Back Air (Port Side Intake) Power Supply
SKU: NSH-7305
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 133.99
• Only 2 remaining
Call if you need more
Cisco N55-PAC-1100W 1100W AC Back-to-Front Air (Port Side Exhaust) Power Supply
SKU: NSH-1149
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 37.99
• Only 2 remaining
Call if you need more
Cisco N55-PAC-750W Nexus 5000 750W Front-to-Back Airflow Switch Power Supply
SKU: NSH-4576
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 21.99
• Only 2 remaining
Call if you need more
Cisco N5K-C5548UP-FA 32x 10GB SFP+ (Unified) 1x Mod Slot B-F Airflow Switch
SKU: NSB-7109
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 255.99
• Only 2 remaining
Call if you need more
NEW Cisco N5K-C5548UP-FA 32x 10GB SFP+ (Unified) 1x Mod Slot F-B Airflow Switch
SKU: NSN-1807
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 374.99
• Only 2 remaining
Call if you need more
NEW Cisco N55-PAC-1100W 1100W AC Back-to-Front Airflow (PSE) Power Supply
SKU: NSN-0264
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N55-PAC-1100W-B 1100W AC Front-to-Back Airflow (PSI) Power Supply
SKU: NSN-0254
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N55-PAC-750W-B 750W AC Front-to-Back Airflow (PSI) Power Supply
SKU: NSN-3764
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N55-PAC-750W Nexus 5000 750W Front-to-Back Airflow Switch Power Supply
SKU: NSN-9540
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N55-PAC-750W-B 750W AC Front-to-Back Airflow (PSI) Power Supply
SKU: NSH-4577
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days