Skip to content


by Cisco
Product Line: Cisco Integrated Services Router (ISR) 800 Series
Product Type: Router
Original price $0.00 - Original price $502.00
Original price
$0.00 - $502.00
Current price $502.00
Title: Surplus

Orders typically ship within 1-3 Business days, if you need an item to ship sooner please contact us.

Product Description

The C841M-4X/K9 Cisco integrates embedded hardware-based cryptography acceleration, enhancing security and performance. It features 4 LAN and 2 WAN RJ-45 10/100/1000 ports, 2 WIM slots, 512 MB DRAM, and 2 GB flash memory, supporting complex networking tasks. Designed for efficiency, it operates with an external AC to DC power supply, requiring 0.16 A AC input current and a 15 W power rating, within a compact 1RU size for easy rack integration.

Key Feature for the C841M-4X/K9

  • What type of cryptography acceleration does this device support?
    The device supports hardware-based cryptography acceleration.
  • How many RJ-45 LAN/WAN ports are available on the device?
    There are 4 LAN and 2 WAN RJ-45 10/100/1000 ports.
  • Can you expand the device's capabilities using modules?
    Yes, the device has 2 WIM slots for module expansion.
  • What is the RAM capacity of this network hardware?
    The device is equipped with 512 MB of DRAM.
  • How much flash memory is available for firmware and configurations?
    It has 2 GB of flash memory.
  • Is there a provision for external USB connectivity?
    Yes, there is 1 external USB slot available.
  • What kind of power supply does the device require?
    It requires an external AC to DC power supply.
  • What is the AC input current specification?
    The AC input current is 0.16 A.
  • What are the physical dimensions of this networking device?
    The device measures 1.732 x 13.5 x 6.9 inches in height, width, and depth, respectively.
  • How does this device manage cooling?
    Cooling is managed through natural convection, without the need for fans.

Product Review

The Cisco C841M-4X/K9 integrates hardware-based cryptography acceleration, enhancing security performance without burdening the main CPU, beneficial for secure network environments. With four LAN and two WAN RJ-45 ports plus two WIC slots, it offers flexibility in connectivity but may be limiting for larger network setups requiring more interfaces. Its operational temperature range and natural convection cooling are suitable for standard office environments, but the unit's limited RAM and flash memory could restrict advanced configurations or future software upgrades.


The Cisco C841M-4X/K9 is a versatile integrated services router designed for small to medium-sized businesses and enterprise branch offices, offering a comprehensive suite of features to provide secure, reliable connectivity. This product is engineered to meet a wide range of networking requirements, with an emphasis on security and performance. The hardware specifications of the Cisco C841M-4X/K9 highlight its capability to support complex network architectures while ensuring efficient operation and data protection. At the core of its design, the router includes embedded hardware-based cryptography acceleration, ensuring secure data transmission without compromising performance. This feature is particularly crucial for organizations that prioritize data security and require encryption for sensitive information. Connectivity options are ample, with the router featuring four RJ-45 onboard LAN/WAN 10/100/1000 ports for LAN connections and two additional ports designated for WAN connections. This versatility allows for flexible network configurations and supports a broad range of communication requirements. Additionally, the device is equipped with two WIM slots, expanding its functionality and enabling further customization to meet specific network needs. The Cisco C841M-4X/K9 is built to handle demanding applications, supported by 512 MB of DRAM and 2 GB of flash memory. This combination ensures smooth operation and sufficient storage for firmware and applications. An external USB slot is also available, providing a convenient option for additional storage or for importing or exporting configurations. Power efficiency is a key consideration for networking hardware, and this device is designed with an external AC to DC power supply, requiring an AC input current of 0.16 A and a power rating of 15 W. It operates on a DC voltage of 12 V, making it compatible with standard power supplies and ensuring easy integration into existing setups. Physical specifications are tailored for easy deployment in a variety of environments. The router measures 1.732 x 13.5 x 6.9 inches and fits in a 1RU rack space, making it compact and suitable for rack-mounted installations. It weighs 2.5 kg with modules, ensuring stability and durability. Natural convection is utilized for cooling, eliminating the need for additional fans and reducing the potential for mechanical failure. The operating conditions of the Cisco C841M-4X/K9 are designed to accommodate a wide range of environments: - Operating temperature ranges from 0 °C to 40 °C, ensuring reliability in various climates. - It can operate at altitudes up to 10,000 ft, allowing deployment in elevated locations without impacting performance. - Humidity tolerance spans from 10% to 85%, ensuring operation in both dry and humid conditions. For storage, the device can withstand temperatures from -40 °C to 70 °C and humidity levels from 5% to 95%, ensuring long-term durability. It can also be stored at altitudes up to 15,000 ft, providing flexibility in warehousing options. In summary, the Cisco C841M-4X/K9 integrates powerful hardware specifications with versatile connectivity options and environmental resilience, making it a suitable choice for businesses seeking a reliable networking solution. Its emphasis on security, performance, and efficiency addresses the critical needs of modern network infrastructures.


Product Code C841M-4X/K9
Manufacturer Cisco
Integrated Cryptography Acceleration Enabled
Ethernet Ports Configuration 4 LAN, 2 WAN (RJ-45 Interface)
Expansion Slot Type 2 WIM
System Memory 512 MB DRAM
Internal Storage 2 GB Flash
USB Ports Quantity 1 External
Power Supply Type External AC-DC Converter
AC Input Rating 0.16 A
Power Consumption 15 W
Earth Wire Gauge 14 AWG
Input Voltage 12 V DC
Dimensions 1.732 x 13.5 x 6.9 inches
Rack Units 1 RU
Device Weight 2.5 kg (Including Modules)
Cooling Method Natural Convection
Operational Temperature Range 0 °C to 40 °C
Usable Altitude Up to 10,000 ft
Relative Humidity (Operational) 10% to 85%
Storage Temperature Range -40 °C to 70 °C
Humidity (Storage) 5% to 95%
Maximum Storage Altitude 15,000 ft

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare