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Cisco 4000 Integrated Services Routers (ISR)- Refurbished, Used, New
Cisco ISR 4000 Integrated Services Routers are branch and enterprise edge routers that run IOS XE. The family runs from the compact ISR 4221 to the ISR 4461, and each model takes Network Interface Modules (NIM) for WAN, voice and switch ports, with larger models adding Service Modules (SM-X). NetworkTigers sells ISR 4000 routers, modules, memory, PVDM4 voice DSPs and power supplies refurbished, used and new. Every unit is tested before it ships so it works when it arrives.
ISR 4000 models and parts
| Model or part | Used for | Shop |
|---|---|---|
| ISR 4221 | Small branch, compact desktop or rack router | ISR 4221 |
| ISR 4321, ISR 4331 | Small and mid-size branch | ISR 4321 | ISR 4331 |
| ISR 4351 | Branch with more module slots, including SM-X | ISR 4351 |
| ISR 4431, ISR 4451, ISR 4461 | Large branch and enterprise edge | ISR 4431 | ISR 4451 | ISR 4461 |
| NIM modules | T1/E1, serial, Ethernet, DSL, voice (FXS, FXO, BRI) and switch ports | NIM modules |
| SM-X modules | Higher-density switch and Ethernet service modules | SM-X modules |
| PVDM4 | Voice DSP modules; supported form factors depend on the router model | PVDM4 |
| Memory and power | DRAM, flash and power supplies for ISR 4000 | Memory | 4320 power | 4430 power | 4450 power |
| Related Cisco routers | Other Cisco branch and edge routers | ISR 1000 | Catalyst 8300 | ASR 1000 | All Cisco routers |
Which ISR 4000 do I need?
Size the router by the throughput your site needs with the services you will run turned on, such as encryption, firewall or voice, not by WAN bandwidth alone, and by the number of module slots you want to fill. Then list the interfaces: the WAN type (Ethernet, T1/E1, serial or DSL), any voice ports, and how many switch ports you want inside the router. Check that each NIM or SM-X module fits the slots on your model: the ISR 4221, 4321 and 4431 have no SM-X slots, and slot counts differ across the range. For voice, DSP resources come as motherboard PVDM4 modules or as NIM and SM-X based DSP modules, and support differs by model (the ISR 4461 does not take motherboard PVDM4 modules). Give us your router model, voice modules and the voice services you plan to run, and we will confirm the right DSP hardware. Check the listing for installed memory, modules and power supplies, and whether the router has one or two power supplies.
Frequently asked questions
Do NIM modules from an ISR 4000 work in a Catalyst 8200 or 8300?
Many NIM modules are supported in both families, but support varies by module. Give us the module part number and the router model and we will confirm before you order.
NetworkTigers has sold enterprise network equipment since 1996. Every router and part carries the NetworkTigers 365-day warranty. Need a quantity? Ask us for a quote.
Cisco PWR-4320-AC AC Power Supply for 4320 ISR Router
$ 81.99
$ 97.99
Call if you need more
Cisco PWR-4430-AC ISR 4331 Series AC Router Power Supply
$ 49.99
$ 84.99
Call if you need more
Cisco ISR4451-X/K9 4x 1GB RJ45 4x 1GB SFP 6x Slot (3x NIM 2x SM 1x ISC) Router
$ 192.99
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Cisco ISR4431/K9 4x 1GB RJ45 4x 1GB SFP 3x NIM Slot 1x ISC Slot Router
$ 154.99
$ 306.99
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Cisco NIM-2GE-CU-SFP ISR 4000 2x 1GB Combo (SFP/RJ-45) Router Module
$ 91.99
$ 398.99
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Cisco ISR4331/K9 Integrated Services 4331 Router (No Clock Issue)
$ 157.99
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Cisco ISR4321-V/K9 4321 Integrated Services Voice Router
$ 1,596.99
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Cisco NIM-ES2-8-P ISR 4000 Series 8x 1GB PoE+ RJ45 Router Module
$ 97.99
$ 131.99
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Cisco NIM-1MFT-T1/E1 ISR 4000 Series 1x T1/E1 Multi-Flex Trunk Router Module
$ 16.99
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Cisco ISR4321/K9 Integrated Services 4321 Router (No Clock Issue)
$ 159.99
$ 312.99
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Cisco ISR4321-SEC/K9 Integrated Services 4321 Security Router
$ 146.99
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Cisco NIM-4FXS ISR 4000 Series 4x FXS Router Module
$ 27.99
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Cisco PWR-4320-POE-AC 341-0703-01 AC Power Supply for 4321 ISR Router
$ 202.99
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New For Cisco ACS-4320-RM-19 ISR 4000 Series 19 Inch Router Rack Mount Kit
$ 12.99
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Cisco NIM-ES2-4 ISR 4000 Series 4x 1GB RJ45 Router Module
$ 51.99
$ 66.99
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Cisco SM-X-4X1G-1X10G ISR 4000 Series 4x 1GB Combo Router Module
$ 589.99
$ 646.99
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Cisco ISR4331-VSEC/K9 Integrated Services 4331 Voice-SEC Router
$ 245.99
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Cisco PVDM4-256 ISR 4000 Series 256-Channel High-Density Voice DSP Router Module
$ 105.99
$ 171.99
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Cisco NIM-1GE-CU-SFP ISR 4000 1x 1GB Combo (SFP/RJ45) Router Module
$ 56.99
$ 72.99
Call if you need more
Cisco ISR4431-SEC/K9 Integrated Services 4431 Security Router
$ 299.99
$ 478.99
Call if you need more
Cisco NIM-4MFT-T1/E1 ISR 4000 Series 4x T1/E1 Router Module
$ 29.99
$ 35.99
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Cisco NIM-24A ISR Series 4 Channel Async Serial Interface Card
$ 125.99
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Cisco MEM-4400-4GU16G 4000 Series 4GB to 16GB DRAM Upgrade Router Memory
Cisco PWR-IE170W-PC-DC IE 4000 Series 170W DC Switch Power Supply
$ 219.99
$ 306.99
Call if you need more
