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by Cisco
Product Line: Cisco 4000 Series
Product Type: Integrated Services Router
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Original price $0.00 - Original price $0.00
Original price
$0.00 - $0.00
Current price $0.00
Title: Surplus

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Product Description

The ISR4451XK9 Cisco integrates a versatile networking solution with an aggregate throughput of 1 Gbps to 2 Gbps, supported by 4 RJ-45 ports and 4 SFP ports for comprehensive connectivity options. It is equipped with 2 Enhanced Service Module slots, 1 Double-Wide Service Module slot, 3 NIM slots, and 1 Onboard ISC slot, enhancing its modular capability and support for OIR (Online Insertion and Removal). Power efficiency is optimized with a typical power consumption of 158 W, scaling up to 450 W with AC power supply and 1000 W with PoE power supply, all within a chassis measuring 88.9 mm in height, 438.15 mm in width, and 469.9 mm in depth.

FAQs for the ISR4451XK9

  • What is the aggregate throughput range of this networking hardware?
    The aggregate throughput range is 1 Gbps to 2 Gbps.
  • How many total onboard WAN or LAN 10/100/1000 ports does the device feature?
    It features 4 total onboard WAN or LAN 10/100/1000 ports.
  • Does the device support Optical Interface Redundancy (OIR)?
    Yes, OIR support is available on this device.
  • How many SFP ports are available?
    There are 4 SFP ports available.
  • What is the capacity of the Data Plane Memory?
    The Data Plane Memory has a capacity of 2 GB DDR3.
  • Can you specify the number of Enhanced Service Module Slots?
    The device includes 2 Enhanced Service Module Slots.
  • What are the power specifications, including typical and maximum power?
    Typical power consumption is 158 W, with a maximum of 450 W using an AC power supply and 1000 W with a PoE power supply.
  • How many NIM slots does the device have?
    There are 3 NIM slots on the device.
  • What are the dimensions of the device?
    The device measures 88.9 mm in height, 438.15 mm in width, and 469.9 mm in depth.
  • What type of USB console port does the device include?
    The device includes a Type B Mini USB console port.

Product Review

The Cisco ISR4451XK9 offers an aggregate throughput of 1 Gbps to 2 Gbps, catering to medium to high-performance needs for businesses. However, its limitation to 4 RJ-45 and 4 SFP ports may restrict scalability for larger network environments. The router benefits from a comprehensive set of features including 2 enhanced service module slots, 3 NIM slots, and support for online insertion and removal (OIR), but its power consumption and physical dimensions could pose challenges for deployment in space-constrained or energy-sensitive scenarios.


The Cisco ISR4451XK9 is designed to deliver high performance, reliability, and scalability in network operations. This router offers an aggregate throughput of 1 Gbps to 2 Gbps, making it suitable for handling heavy data traffic efficiently. It features a comprehensive set of interfaces and ports to support a wide range of networking configurations and services. Key hardware specifications include four onboard WAN or LAN 10/100/1000 ports, providing high-speed connectivity options. Additionally, the router is equipped with four RJ-45 ports and four SFP ports, enhancing its versatility in connecting to different network mediums. For expanded network services and capabilities, the ISR4451XK9 includes two enhanced service module slots and one double-wide service module slot, along with three Network Interface Module (NIM) slots. These slots allow for further customization and scalability of network services. Support for Online Insertion and Removal (OIR) enhances the router's operational flexibility, allowing for upgrades and module replacements without disrupting network services. An onboard ISC slot further extends the device's service integration capabilities. Memory configuration is optimized for efficient data processing, with 2 GB DDR3 allocated for the data plane and 4 GB DDR3 for the control and services plane. This ensures smooth operation and reliable performance under varying network loads. For external connectivity and management, the router provides two USB 2.0 Type A slots, a USB console port (Type B Mini), and both serial console and auxiliary RJ-45 ports. These interfaces support a range of external devices and facilitate easy configuration and troubleshooting. The Cisco ISR4451XK9 operates within a wide AC input voltage range of 100 to 240 VAC and supports an AC input frequency of 47 to 63 Hz. Its AC input current range is 7.1 to 3 A, with a surge current of less than 50 A, ensuring compatibility with various power supplies and reducing the risk of power-related issues. Power efficiency is a key consideration in the design of this router. It consumes a typical power of 158 W, with a maximum power consumption of 450 W with an AC power supply and up to 1000 W with a PoE (Power over Ethernet) power supply. This allows for efficient operation and the potential to power connected devices through PoE. Physically, the router measures 88.9 mm in height, 438.15 mm in width, and 469.9 mm in depth. This compact size, combined with its comprehensive feature set, makes it an ideal choice for deployment in a variety of network environments. - Aggregate throughput of 1 Gbps to 2 Gbps supports high-volume data traffic. - Four SFP ports and enhanced service module slots offer flexibility in network configuration and expansion. - Efficient power management with a typical power consumption of 158 W and support for PoE. Overall, the Cisco ISR4451XK9 is engineered to meet the demands of modern network infrastructures, offering a blend of performance, scalability, and reliability for enterprise and service provider networks.


Part Number and ManufacturerCisco ISR4451XK9
Throughput Range1 to 2 Gbps
Integrated WAN or LAN Gigabit Ethernet Ports4
Gigabit Ethernet RJ-45 Ports4
Gigabit Ethernet SFP Ports4
Slots for Enhanced Service Modules2
Slots for Double-Width Service Modules1
Network Interface Module Slots3
Online Insertion and Removal SupportedYes
Internal Service Card Slot1
Memory for Data Processing2 GB DDR3
Memory for Control and Services4 GB DDR3
USB 2.0 Ports Type A2
Mini Type B USB Console Port1
Console Port via RJ-451
Auxiliary Port via RJ-451
Voltage Requirement AC100 to 240 VAC
AC Frequency Requirement47 to 63 Hz
AC Current Consumption Range7.1 to 3 A
Peak AC Input CurrentLess Than 50 A
Typical Power Consumption158 W
Max Power with AC Supply450 W
Max Power with PoE Supply1000 W
Unit Height88.9 mm
Unit Width438.15 mm
Unit Depth469.9 mm

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