Your search for "C-NIM-1X" revealed the following:
Cisco C-NIM-1X Catalyst 8300 Series 1x 10GB SFP+ Switch Network Interface Module
SKU: NSB-1094
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,476.99
• Only 2 remaining
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NEW Cisco C-NIM-1X Catalyst 8300 Series 1x 10GB SFP+ Switch Interface Module
SKU: NSN-0484
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,522.99
• Only 2 remaining
Call if you need more