Your search for "FPR2K-NM-6X1SX-F" revealed the following:

NEW Cisco FPR2K-NM-6X1SX-F FirePower 6x 1G SFP Fiber (FTW) Firewall Module

SKU: NSN-7623
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco FPR2K-NM-6X1SX-F FirePower 6x 1G SFP Fiber (FTW) Firewall Module

SKU: NSB-5666
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days