Cisco ISR4451-X/K9-RF
ISR4451(4GE3NIM2SM8GFLASH4GDRAM)IP Base REMANUFACTURED

Key facts
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
- RRP
- Prology AU
- Prology US
- List price
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.
Request a quote for ISR4451-X/K9-RF
Tell us the quantity and condition you need. Prology replies with a firm price and lead time within 1 business day.
