Your search for "NIM-" revealed the following:
NEW Cisco NIM-4FXSP ISR 4000 Series 4x FXS Router Network Module
SKU: NSN-3273
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,041.99
• 5 in stock
Call if you need more
NEW Cisco SM-X-NIM-ADPTR 4000 Series ISR SM to 2x NIM Module Adapter Router
SKU: NSN-3349
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 374.99
• Only 2 remaining
Call if you need more
Cisco NIM-4E/M ISR 4000 Series 4x E/M Router Network Interface Module
SKU: NSH-7766
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 166.99
• Only 2 remaining
Call if you need more
Cisco NIM-4FXSP ISR 4000 Series 4x FXS Router Network Module
SKU: NSH-7082
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 72.99
• Only 2 remaining
Call if you need more
Cisco SM-X-NIM-ADPTR 4000 Series ISR SM to 2x NIM Module Adapter Router
SKU: NSB-9245
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 63.99
• Only 2 remaining
Call if you need more
Cisco NIM-24A ISR Series 4 Channel Async Serial Interface Card
SKU: NSB-0760
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 125.99
• Only 1 remaining
Call if you need more
NEW Cisco NIM-1T 4400 Series 1x Serial WAN Router Interface Card
SKU: NSN-5700
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 437.99
• 10 in stock
Call if you need more
Cisco NIM-1T ISR 4000 Series 1x Serial WAN Router Interface Card
SKU: NSH-6921
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 429.99
• 10 in stock
Call if you need more
Cisco NIM-ES2-8 ISR 4000 Series 8x 1GB RJ-45 Router Module
SKU: NSH-4958
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,168.99
• Only 2 remaining
Call if you need more
Cisco NIM-16A ISR 4000 16x Async Serial Interface Network Interface Module
SKU: NSH-9113
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 184.99
• Only 2 remaining
Call if you need more