null
Server & Workstation RAM at Wholesale Volume Pre-tested Ships Today
Cisco ISR4451-X/K9 4451-X - 4x 1GE - 3x NIM Slots - 2x SM-X Slots - NO Extra Modules - Cisco IOS XE - 2U

Cisco ISR4451-X/K9 4451-X - 4x 1GE - 3x NIM Slots - 2x SM-X Slots - NO Extra Modules - Cisco IOS XE - 2U

Shop all Networking
Was: $219.99
$149.99
(You save $70.00)
(No reviews yet)
SKU:
NSB 445100
Availability:
1 in stock
Condition:
Used
Shipping:
Free Shipping (USA)
Operating System:
Cisco IOS XE

Adding to cart… The item has been added
  • Ships same day on in-stock orders before 1:00 pm EST (Mon–Fri)
  • Free ground shipping in the contiguous US on orders over $35. Details
  • 90-day returns with an RMA. Return policy
Adding to cart… The item has been added
Was: $219.99
$149.99
(You save $70.00)
Adding to cart… The item has been added

Cisco ISR4451-X/K9 4451-X 4x1GE Integrated Services Router - NO Extra Modules

The Cisco ISR4451-X/K9 is a modular 2U enterprise Integrated Services Router from the Cisco 4000 Series. Designed for branch, WAN, security, voice, and application-service environments, the ISR4451-X combines integrated Gigabit Ethernet connectivity with expandable NIM and SM-X module architecture.

This listing is for the base Cisco 4451-X router configuration with NO additional NIM, SM-X, or other optional expansion modules installed or included. The router's integrated Ethernet interfaces remain available for network connectivity.

Manufacturer: Cisco

Series: Cisco 4000 Series ISR

Model: Cisco 4451-X

Part Number: ISR4451-X/K9

Product Type: Integrated Services Router

Integrated Ethernet: 4x Gigabit Ethernet

NIM Slots: 3 - Empty / No Extra Modules

SM-X Slots: 2 - Empty / No Extra Modules

Operating System Platform: Cisco IOS XE

Form Factor: 2U Rackmount

Key Features

  • Cisco 4451-X Integrated Services Router
  • 4x integrated Gigabit Ethernet interfaces
  • Modular Cisco 4000 Series ISR architecture
  • 3x Network Interface Module (NIM) slots
  • 2x Enhanced Service Module (SM-X) slots
  • 3x Internal Services Card (ISC) slots
  • NO additional NIM or SM-X modules included
  • Cisco IOS XE software platform
  • Hardware-accelerated packet forwarding architecture
  • IPv4 and IPv6 networking support
  • Redundant power supply capability
  • 2U rackmount chassis

Integrated Network Interfaces

  • 4x integrated Gigabit Ethernet interfaces
  • 10/100/1000 Ethernet connectivity
  • RJ45 and SFP media options available on applicable combination interfaces
  • Dedicated Ethernet management interface
  • RJ45 console interface
  • USB console interface
  • USB Type-A connectivity

Expansion

  • 3x Network Interface Module (NIM) slots
  • 2x Enhanced Service Module (SM-X) slots
  • 3x Internal Services Card (ISC) slots
  • Supports compatible Cisco networking and service modules
  • NO extra NIM modules included
  • NO extra SM-X modules included
  • NO optional network expansion cards included

Performance & Architecture

  • Hardware-assisted packet forwarding
  • Multicore control and data-plane architecture
  • Performance-on-demand architecture
  • Routing throughput varies according to software licensing and configuration
  • Hardware-assisted encryption capabilities
  • Designed for enterprise branch and WAN applications

Memory & Storage

  • DDR3 ECC system memory architecture
  • Upgradeable memory configuration
  • Internal flash storage for Cisco IOS XE and system files
  • USB storage support
  • Exact installed RAM and flash capacity may vary by individual unit

Power

  • Modular power supply architecture
  • Redundant power supply capability
  • Compatible AC and DC power supply options
  • Exact installed power supply quantity and type may vary by unit

Software & Networking

  • Cisco IOS XE software platform
  • IPv4 and IPv6 support
  • Layer 3 routing capabilities
  • Static and dynamic routing support
  • OSPF support
  • EIGRP support
  • BGP support
  • Quality of Service support
  • VPN and security functionality dependent on installed licensing
  • Feature availability varies by IOS XE release and license configuration

Ideal Applications

  • Enterprise Branch Routing
  • WAN Connectivity
  • Corporate Network Infrastructure
  • VPN Gateway Applications
  • Network Security Services
  • Network Labs
  • Cisco Training Environments
  • Custom Router Configurations

Included

  • 1x Cisco ISR4451-X/K9 4451-X Integrated Services Router

Not Included Unless Specified

  • NIM Expansion Modules
  • SM-X Service Modules
  • Optional Network Expansion Cards
  • SFP Transceivers
  • Fiber Optic Cables
  • Ethernet Cables
  • Console Cable
  • Rack Rails / Rack Mounting Hardware
  • Additional Software Licenses
  • Power Cord
  • Additional Accessories

Important Notes

  • Photos are for reference only.
  • Only listed items are included.
  • This router is sold with NO extra NIM or SM-X expansion modules.
  • The four integrated Gigabit Ethernet interfaces are part of the router chassis and remain available.
  • SFP transceivers are not included unless specifically stated.
  • Licensed throughput and software functionality depend on the installed Cisco IOS XE release and licensing configuration.
  • No accessories are included
  • Verify compatibility before purchase.

PCSP Standard 1 Year full coverage of parts, labor, and shipping.

Installing this unit at a commercial location?

This unit is eligible for on-site service with PCSP Securit. Click here to learn more

Model

Brand:
Cisco
Series:
Cisco 4000 Series
Model Number:
Cisco ISR 4451-X
Form Factor:
2U Rackmount

Quick Info

Shipping:
Free Shipping
Power Supply:
YES

Processor

Graphics

Memory

Storage

SSD:
Optional Supports 2x SSD

Optical Drive

Software

Operating System:
Cisco IOS XE

Display

Connectivity

Front Panel Ports

Back Panel Ports

Keyboard & Mouse

Dimensions & Weight

Length:
18.50 in.
Width:
17.25 in.
Height:
3.50 in.
Weight:
33.00 LBS.
Write a Review

**Note: Free Shipping only applies to US contiguous states and to orders over $35. Hawaii, Alaska, and other US territories do not qualify for free shipping. Shipping to PO Boxes does not qualify for free shipping.**

Faster shipping methods such as 3-Day, 2-Day, and Overnight are available at check out, and at our specially discounted rates!

All orders placed on this website will be shipped by the end of the next business day (Monday – Friday) via FedEx, UPS or USPS. In-stock orders placed before 1:00 pm (EST) are eligible for same day shipping. Orders placed on Friday, Saturday, or Sunday will be shipped the following Monday.

PLEASE NOTE: If using a third-party freight forwarding service, note that this will void your warranty. We are not responsible for damages from freight forwarder to the final destination.

View our full shipping information and details here.

Returns

Items must be returned within 90 days of purchase. All returns require a Return Merchandise Authorization (RMA) number — email support@pcsp.com or call (248) 305-7900 with the reason for the return, and we will issue the RMA along with the return address.

Refunds are issued to the same form of payment used at checkout. If the equipment is not defective, the buyer pays return shipping; shipping fees are refunded when the product is found to be defective.

There is 20% restocking fee applied to any items returned ordered in error or returned as defective but deemed as operational upon receipt. Product will be in good working condition, but we cannot guarantee compatibility with your equipment or software.

View our full warranty information here. View our full return policy here.

Related Products

!

55960 Grand River Ave, New Hudson, MI 48165

Copyright © 2026 PCSP - PC Server & Parts. All rights reserved.