Cisco ISR 4000 Series Router ISR4331/K9 Overview
Cisco ISR 4000 Series Router ISR4331/K9 is a genuine edge and wide-area routing product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco ISR 4000 Series family, the ISR4331/K9 unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
From a specification standpoint, it offers 6 ports for client, server or uplink connectivity. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include branch and campus WAN connectivity, service-provider edge and MPLS deployments, and secure remote-site interconnect. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Cisco 4000 Series Router ISR4331 (2GE,2NIM,1SM,4G FLASH,4G DRAM,IPB)”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the ISR4331/K9. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise WAN
Branch and campus routing with advanced services.
Service Provider
Edge routing for ISP and MPLS deployments.
Data Center
Interconnect core and aggregation layers reliably.
Buying a Pre-Owned ISR4331/K9
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
| ISR4331 | |
| Product list | |
| Product code | ISR4331 |
| Power cable | No |
| Button | No |
| Product parameters | |
| Port | 6 |
| Port Type | Network Interface Module (NIM) Integrated Services Card (ISC) SFP |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 10/100/1000Base-T |
| Flash Memory | 4GB |
| Security Features | IPsec VPN Secure Socket Layer (SSL) Advanced Application Inspection Application Control Secure Shell (SSH) Network Admissions control (NAC) Voice and Video Enabled VPN Dynamic Multipoint VPN (DMVPN) Group Encrypted Transport (GET) Flex VPN Cisco IOS XE Software-based Traffic Control NBAR AAA PKI ACL |
| Compliant Standards | ANSI T1.101, IEEE 802.1ag, IEEE 802.1Q, IEEE 802.3, IEEE 802.3ah, ITU-T G.823, ITU-T G.824 |
| Introduction | ISR4331 revolutionizes WAN communications in the enterprise branch. With new levels of built-in intelligent network capabilities and convergence, it specifically addresses the growing need for application-aware networking in distributed enterprise sites. |
| Power Device | |
| Power Source | Internal power supply |
| Max Supported Qty | 1 |
| Input Voltage | 120 V AC 230 V AC |
| Physical specifications | |
| Width | 17.2 in |
| Height | 1.8 in |
| Depth | 17.2 in |
| Weight | 11.02 lbs |
| Environmental Parameters | |
| Min Temperature | 32 °F |
| Max Temperature | 104 °F |
| Humidity Operating | 5 - 85% (non-condensing) |
