Cisco ISR4321/K9 4321 Integrated Services Router 2GE 2NIM Used For Sale

Cisco ISR4321/K9 Integrated Services Router Used Cisco ISR4321/K9 Integrated Services Router | 2x GE | 2x NIM | ISR 4321

ISR4321/K9 | 2x Gigabit Ethernet | 2x NIM Slots | 1x ISC Slot | 4G DRAM | 4G Flash | Rack-Mountable | Used

Product Description

This listing is for a Cisco ISR4321/K9 Integrated Services Router, part of Cisco's 4000 Series ISR branch router family. The ISR 4321 is a compact, high-performance branch router combining routing, security, and WAN services in a 1RU form factor - ideal for small branch offices and remote sites.

The ISR4321/K9 provides 2 x Gigabit Ethernet (RJ-45 / SFP) WAN/LAN ports, 2 x Network Interface Module (NIM) slots, and 1 x Integrated Service Card (ISC) slot for flexible expansion (T1/E1, serial, LTE, PoE, and more). It ships with 4GB DRAM and 4GB flash and supports Cisco IOS XE with modular services including firewall, VPN, and application visibility.

Default aggregate throughput is 50 Mbps, upgradable to 100 Mbps via performance license. A dependable, widely-deployed platform for branch WAN, SD-WAN edge, and lab/CCNA/CCNP study.

Included in This Sale

• 1x Cisco ISR4321/K9 Integrated Services Router

Not Included

• No NIM or ISC modules included unless shown in photos
• No rack ears or rail kit included unless shown in photos
• No power cable included
• No SFP transceivers or licenses included beyond base IOS XE

Condition Notes

• Used - Pulled from a working environment. Unit was operational when removed.
• Tested to boot / power-on. Configuration erased (no prior config retained).
• May show light cosmetic wear consistent with data center use. See photos for actual condition.

Specifications Brand Cisco Part Number / MPN ISR4321/K9 Model ISR 4321 (4000 Series ISR) WAN/LAN Ports 2 x Gigabit Ethernet (RJ-45, 1 with SFP) Module Slots 2 x NIM + 1 x ISC Memory 4GB DRAM | 4GB Flash (default) Throughput 50 Mbps default (upgradable to 100 Mbps via license) Operating System Cisco IOS XE Form Factor 1RU Rack-Mountable Condition Used - Tested Quantity Available Multiple in stock - volume available Buyer Notes

Only the items specifically listed as included are part of this sale. NIM/ISC modules, SFPs, rack ears, and power cables are not included unless pictured.

Licensing: Unit ships with base Cisco IOS XE. The default 50 Mbps throughput can be raised to 100 Mbps with a Cisco performance license (sold separately by Cisco). Advanced feature sets (SEC, APP) may require additional licensing.

Volume Available: Multiple ISR4321/K9 units in stock. Contact for volume/bulk pricing and combined freight - ideal for VARs, MSPs, refurbishers, and lab builders.

Keywords: Cisco ISR4321/K9, ISR 4321, Cisco 4000 series router, ISR4321 router, Cisco branch router, Cisco integrated services router, ISR4321/K9 used, Cisco IOS XE router, Cisco 2GE router, Cisco NIM router, Cisco 4321 K9, Cisco branch WAN router, Cisco SD-WAN edge router