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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
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Current price $0.00
Title: Surplus

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Product Description

The ISR4351SECK9 Cisco integrates a Security Bundle and delivers aggregate throughput from 200 Mbps to 400 Mbps, suitable for high-demand applications. It features 3 RJ-45 ports, 3 SFP ports, 3 NIM slots, 2 Enhanced Service Module slots, and a single Onboard ISC slot, providing extensive connectivity and expansion options. With 4 GB of DDR3 memory (expandable to 16 GB), 4 GB of flash memory (also expandable to 16 GB), and support for OIR, this router is designed for scalable, reliable network infrastructure.

FAQs for the ISR4351SECK9

  • What is the aggregate throughput range of this networking hardware?
    The aggregate throughput ranges from 200 Mbps to 400 Mbps.
  • How many total onboard WAN or LAN ports does the device feature?
    The device features 3 WAN or LAN 10/100/1000 ports.
  • Does the product support Optical Interface Redundancy (OIR)?
    Yes, OIR support is available.
  • What are the memory specifications of part number?
    The memory specifications include 4 GB (Default) / 16 GB (Maximum) DDR3.
  • Can you specify the power requirements for this hardware?
    The AC input voltage is 100 to 240 VAC, frequency 47 to 63 Hz, current range 7.1 to 3 A, and surge current is 60 A.
  • What type of USB console port is available on the device?
    The device has 1 USB Console Port Type B Mini.
  • How many Enhanced Service Module Slots does the device include?
    There are 2 Enhanced Service Module Slots included.
  • What is the maximum power consumption with an AC power supply?
    The maximum power consumption with an AC power supply is 430 W.
  • Are there any SFP ports available on this networking hardware?
    Yes, there are 3 SFP ports available.
  • What are the physical dimensions of the device?
    The dimensions are 88.9 mm in height, 438.15 mm in width, and 469.9 mm in depth.

Product Review

The Cisco ISR4351SECK9 offers a scalable aggregate throughput from 200 Mbps to 400 Mbps, catering to varying bandwidth requirements. Despite its versatility with three RJ-45, SFP ports, NIM slots, and enhanced service module slots, the initial 4 GB memory might be insufficient for high-demand applications, though it is expandable to 16 GB. Additionally, the unit's power consumption, with a typical power usage of 42 W and a maximum of 430 W without PoE, suggests a need for careful power management in dense deployments.


The Cisco ISR4351SECK9 is a versatile and efficient networking solution designed for businesses looking for a secure and scalable infrastructure. This model is a part of Cisco's Integrated Services Routers Series, which is renowned for providing high performance and reliability in data, voice, video, and mobile applications. The ISR4351SECK9 comes with a security bundle, ensuring advanced protection for your network traffic. One of the key highlights of the Cisco ISR4351SECK9 is its aggregate throughput ranging from 200 Mbps to 400 Mbps, making it suitable for medium to large-sized business operations. This level of throughput ensures that the router can handle a significant amount of data transmission without bottleneck issues, providing a smooth and efficient networking experience. The hardware specifications of the ISR4351SECK9 include a robust set of features designed to meet a variety of networking needs. It has three onboard WAN or LAN 10/100/1000 ports, providing flexibility in connectivity options. Additionally, the router is equipped with three RJ-45 ports and three SFP ports, enhancing its ability to connect to different types of network infrastructures. For expansion and customization, the ISR4351SECK9 includes three Network Interface Module (NIM) slots and two enhanced service module slots, allowing for a wide range of additional functionalities. It also features an onboard ISC slot, further extending its capabilities. The router comes with 4 GB of DDR3 memory by default, which can be upgraded to a maximum of 16 GB to accommodate more demanding applications. Similarly, its flash memory starts at 4 GB and can also be expanded up to 16 GB, providing ample space for firmware and configuration files. Support for Online Insertion and Removal (OIR) ensures that the router can be maintained and upgraded without significant downtime, a critical feature for businesses that require continuous operation. Additionally, the ISR4351SECK9 includes one external USB 2.0 Type A slot and a mini Type B USB console port for management purposes. It also features both a serial console RJ-45 port and a serial auxiliary RJ-45 port for additional connectivity options. In terms of power, the ISR4351SECK9 operates within a wide range of AC input voltages (100 to 240 VAC) and frequencies (47 to 63 Hz), with a typical power consumption of 42 W. The maximum power varies depending on the power supply used, with 430 W for AC power supply and up to 990 W when equipped with a PoE power supply. The physical dimensions of the router are 88.9 mm in height, 438.15 mm in width, and 469.9 mm in depth, making it a compact yet powerful device suitable for rack mounting in various IT environments.
  • Security Bundle: Enhanced security features for network protection.
  • Aggregate Throughput: 200 Mbps to 400 Mbps, catering to medium and large-sized operations.
  • Expansion Options: Three NIM slots, two enhanced service module slots, and one ISC slot for extended functionalities.
Overall, the Cisco ISR4351SECK9 offers a balanced combination of performance, security, and flexibility, making it an ideal choice for businesses aiming to build a resilient and efficient network infrastructure.


Item NumberCisco ISR4351SECK9
Included Security FeaturesYes
Throughput Range200 Mbps to 400 Mbps
Total Integrated WAN/LAN Ports3
Number of RJ-45 Interfaces3
Quantity of SFP Interfaces3
Network Interface Modules (NIM) Slots3
Slots for Enhanced Service Modules2
Internal Service Card (ISC) Slot Count1
Standard/Max RAM4 GB / 16 GB DDR3
Standard/Max Storage4 GB / 16 GB
Online Insertion and Removal (OIR)Yes
USB 2.0 Ports (Type A)1
Mini Type B USB Console Interface1
Console Port (RJ-45)1
Auxiliary Port (RJ-45)1
Voltage Input100 to 240 VAC
Input Frequency47 to 63 Hz
Input Current7.1 to 3 A
Surge Current60 A
Typical Consumption42 W
Peak Power with AC Supply430 W
Peak Power with PoE Supply990 W
Unit Height88.9 mm
Unit Width438.15 mm
Unit Depth469.9 mm

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