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Cisco ISR4451-X/K9-RF

ISR4451(4GE3NIM2SM8GFLASH4GDRAM)IP Base REMANUFACTURED

MPNISR4451-X/K9-RFRoutersUpdated
Cisco ISR4451-X/K9-RF ISR4451(4GE3NIM2SM8GFLASH4GDRAM)IP Base REMANUFACTURED
View on Prology AU

Key facts

Part number
ISR4451-X/K9-RF
Brand
Cisco
Category
Routers
Price
AUD 349 from Prology AU (refurbished)USD 230 from Prology US (refurbished)
Availability
  • Prology AU: Refurbished · in stock
  • Prology US: Refurbished · in stock

The Cisco ISR4451-X/K9-RF is a router listed on tprice.co. Prology AU currently offers it refurbished from AUD 349. Prology US currently offers it refurbished from USD 230. RRP AUD 49,733.21≈ USD 34,608 (Oct 2026). Request a quote for volume pricing, or sell us your used routers.

Overview

ISR4451(4GE3NIM2SM8GFLASH4GDRAM)IP Base REMANUFACTURED

The Cisco 4451-X Integrated Services Router revolutionizes the delivery of application-aware services in a branch-office environment. This new member of the Cisco ISR Family provide extensive Layer 7 services hosted internally to the branch office while maximizing operating expenses(OpEx) savings.

The Cisco 4451-X offers a multicore CPU architecture running modular Cisco IOS XE Software that dynamically adapts to the changing needs of your branch-office environment. The separation of the control and data planes provides the ability to deliver application-aware network services while maintaining a stable platform and a high level of performance during periods of heavy network load. With the ability to integrate application-aware services and the ability to scale performance without a complete equipment upgrade, the Cisco 4451-X offers exceptional total cost of ownership (TCO) savings and network agility through the intelligent integration of market-leading security, unified communications, and application services.

  • With Gigabit Ethernet, retrieve up to 10x faster than standard Ethernet connectivity and provides high-performance
  • Wall mounting feature - Conveniently install the router while keeping the wires and cables organized
  • Features management port for a reliable networking
  • With 10/100/1000Base-T technology, get up to 1000 mbps data transfer rate over twisted pair cable
  • Built-in power supply to ensure all components are being supplied with accurate voltage
  • Create a wired network with all the PCs connected with this router and share your Internet connection as well as files while checking emails

Specifications

General

Security Features
IPsecVPNSecure Socket Layer (SSL)Advanced Application InspectionApplication ControlSecure Shell (SSH)Network Admissions control (NAC)Voice and Video Enabled VPNDynamic Multipoint VPN (DMVPN)Group Encrypted Transport (GET)Flex VPNCisco IOS XE Software-based Traffic ControlNBARAAAPKIACL
Network Technology
10/100/1000Base-T
Ethernet Technology
Gigabit Ethernet
Expansion Slot Type
SFP

Network Interface Module (NIM)

Total Number of Expansion Slots
10.0
Flash Memory
8 GB
Maximum Memory Supported
16 GB
Standard Memory
4 GB
Memory Technology
DRAM
Product Type
Router

Manufacturer Website Address

Manufacturer
Cisco Systems, Inc
Product Model
4451-X
Product Name
4451-X Router
Product Series
4400
Brand Name
Cisco
Input Voltage
230 V AC

120 V AC

Power Source
Power Supply
PoE (RJ-45) Port
Yes
Redundant Power Supply Supported
Yes
Token Ring Port
No
USB
Yes
Number of Network (RJ-45) Ports
4
Powerline
No
Management Port
Yes
Total Number of Ports
4
Serial V.35 Interface
No
Weight (Approximate)
13.06 kg
Form Factor
Rack-mountable

Wall Mountable

Height
88.9 mm
Width
438.2 mm
Depth
469.9 mm
Compatible Rack Unit
2U

Price history

Latest
AUD 49,733.21≈ USD 34,608
Oct 2026
Lowest recorded
AUD 49,733.21≈ USD 34,608
Highest recorded
AUD 49,733.21≈ USD 34,608
Recorded
2026
1 price point
Price history of Cisco ISR4451-X/K9-RF in AUDRRP AUD 49,733.21, unchanged from Oct 2026 to Oct 2026; 1 other series020k40k60kAUD11 Oct12 Oct13 Oct49,733.21349
  • RRP
  • Prology AU
Prices in AUD (as recorded, not converted) · Oct 2026 – Oct 2026
Price history of Cisco ISR4451-X/K9-RF in USDList price from USD 8,400 in Nov 2014 to USD 14,157.90 in Apr 2025; low 8,400, high 15,890.81; 1 other series010k20kUSD201520182021202423014,157.90
  • Prology US
  • List price
Prices in USD (as recorded, not converted) · Nov 2014 – Oct 2026

Why buy from Prology

  • Tested before dispatchEvery item is checked by our technicians before it ships.
  • Warranty includedParts are covered by a Prology warranty – ask us for the terms.
  • Fast shippingDispatched from our Australian and US locations.
  • Real people, quick repliesQuotes and answers within 1 business day.

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