Your search for "ws-x4991" revealed the following:

NEW Cisco WS-X4991 Catalyst 4900 Series Switch Fan Module

SKU: NSN-9537
Condition: New
Shipping: Overnight Options
Warranty: 365 days

$ 42.99

$ 87.99

• Only 2 remaining
Call if you need more

Cisco WS-X4991 Catalyst 4900 Series Switch Fan Module

SKU: NSH-4517
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

$ 39.99



• 7 in stock
Call if you need more