Your search for "c3850-nm-4-10g" revealed the following:

Cisco C3850-NM-4-10G Catalyst 3850 4x 10GB SFP+ Switch Module

SKU: NSH-2537
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

$ 194.99



• 8 in stock
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NEW Cisco C3850-NM-4-10G Catalyst 3850 4x 10GB SFP+ Switch Module

SKU: NSN-1790
Condition: New
Shipping: Overnight Options
Warranty: 365 days

$ 499.99



• Only 2 remaining
Call if you need more