Skip to content


by Cisco
Product Line: Cisco Series
Product Type: router
Sold out
Original price $0.00 - Original price $0.00
Original price
$0.00 - $0.00
Current price $0.00
Title: Surplus

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

Product Description

The CISCO2921-HSEC+/K9 is a wired, rack-mountable modular networking device, occupying 2U of rack space, designed for high-performance Ethernet networking with 3 integrated 10/100/1000 Ethernet ports (RJ-45 only). It features extensive expansion capabilities including 2 service module slots, 1 Internal Service Module slot, 3 onboard digital signal processor slots, and 4 Enhanced high-speed WAN interface card (EHWIC) slots. The device supports a VPN ISM module HSEC bundle for the 2921 ISR platform, has an internal power supply requiring AC 120/230 V (50/60 Hz), and includes 512 MB of DDR2 SDRAM memory (expandable to 2 GB) and 256 MB of flash memory (expandable to 8 GB).

FAQs for the CISCO2921-HSEC+/K9

  • What are the dimensions of the 2921 ISR platform?
    The dimensions are 17.2 inches in width, 18.5 inches in depth, and 3.5 inches in height.
  • How many Ethernet ports are available on this device?
    There are 3 integrated 10/100/1000 Ethernet ports (RJ-45 only).
  • Can you expand the memory on this model?
    Yes, the DRAM memory comes with 512 MB installed and can be expanded up to 2 GB. Flash memory starts at 256 MB and can be increased to 8 GB.
  • What expansion capabilities does it offer?
    It includes 2 service module slots, 1 Internal Service Module slot, 3 onboard digital signal processor slots, and 4 Enhanced high-speed WAN interface card (EHWIC) slots.
  • What power requirements does the device have?
    It requires an AC 120/230 V power supply, operating at 50/60 Hz.
  • What is the operating temperature range?
    The operating temperature ranges from 32 °F to 104 °F.
  • Does it support VPN?
    Yes, it includes a VPN ISM module HSEC bundle for enhanced security.
  • What is the rack unit size of this device?
    The device is 2U rack-mountable.
  • What type of connectivity technology does it use?
    It utilizes wired connectivity technology, supporting Ethernet, Fast Ethernet, and Gigabit Ethernet protocols.
  • What are the humidity requirements for operating this device?
    The operating humidity range is from 10% to 85%.

Product Review

The CISCO2921-HSEC+/K9 offers a flexible networking solution with its 3 integrated Gigabit Ethernet ports and extensive expansion capabilities, including 2 service module slots, 1 Internal Service Module slot, 4 EHWIC slots, and 3 DSP slots, catering to a variety of networking needs. However, the unit's 2U rack size and internal power supply requirement may limit installation options for environments with space constraints or specific power configuration needs. Additionally, the initial DRAM and flash memory capacities of 512 MB and 256 MB, respectively, might necessitate upgrades to achieve optimal performance for more demanding applications, despite the support for expansion.


The CISCO CISCO2921-HSEC+/K9 is a modular router designed for secure data, voice, video, and application services for small and medium-sized businesses. The device is housed in a 2U rack-mountable enclosure, emphasizing its suitability for organized and efficient data center deployment. Its internal architecture is engineered to support high-speed data processing and secure communication channels, making it an ideal choice for businesses looking to scale their network infrastructure. Key to the CISCO2921-HSEC+/K9's functionality are its connectivity options. The device includes three integrated 10/100/1000 Ethernet ports, providing high-speed connectivity and supporting a range of networking protocols, including Ethernet, Fast Ethernet, and Gigabit Ethernet. This ensures that the router can handle the demands of varied network environments and data-intensive applications. Expansion capabilities are a significant aspect of the CISCO2922921-HSEC+/K9, offering flexibility and scalability for growing network demands. The router features: - 2 service module slots - 1 Internal Service Module slot - 3 onboard digital signal processor slots - 4 Enhanced high-speed WAN interface card (EHWIC) slots These slots allow for the addition of various modules and cards, enabling customization to meet specific networking requirements, including enhanced security, voice processing, and increased bandwidth. Included in the bundle is the VPN ISM module HSEC, tailored for the 2921 ISR platform. This module enhances the router's capabilities, focusing on secure data transmission across networks, making it particularly valuable for organizations prioritizing data security and confidentiality. The power supply is internal, requiring AC 120/230 V (50/60 Hz), ensuring compatibility with a wide range of power sources and providing operational reliability. The device's dimensions are set at 17.2 inches in width, 18.5 inches in depth, and 3.5 inches in height, making it a compact solution that does not compromise on power or capability. Operating conditions are another consideration for the CISCO2921-HSEC+/K9. It operates within a temperature range of 32 °F to 104 °F and can function in humidity levels ranging from 10% to 85%. This wide range of operating conditions ensures reliability and durability in various environments. Memory capacity includes 512 MB of DDR2 SDRAM memory installed, with the ability to upgrade to 2 GB, and 256 MB of flash memory, expandable to 8 GB. This memory capacity supports the router's processing power and storage needs for complex configurations and networking services. Status indicators on the device provide immediate feedback on link activity and power status, aiding in diagnostics and monitoring of the network's health. In conclusion, the CISCO CISCO2921-HSEC+/K9 is engineered to meet the needs of businesses seeking a reliable, scalable, and secure networking solution. Its combination of high-speed interfaces, expansion capabilities, and robust security features make it a versatile choice for supporting a wide range of data, voice, and video applications.


Product NumberCISCO2921-HSEC+/K9
Height in Rack Units2U
Network InterfacesThree 10/100/1000 Mbps Ethernet ports (RJ-45)
Service Module SlotsTwo slots available
Internal Service Module SlotOne slot available
Digital Signal Processor SlotsThree slots on board
EHWIC SlotsFour slots for Enhanced High-Speed WAN Interface Cards
VPN BundleVPN ISM module HSEC package for 2921 ISR series
Chassis TypeModular rack-mountable - 2U
Network ConnectionWired
Supported Network ProtocolsEthernet, Fast Ethernet, Gigabit Ethernet
Power Supply TypeInternal
Power RequirementsAC 120/230 V (50/60 Hz)
Width17.2 inches (47 cm)
Depth18.5 inches (43.8 cm)
Height3.5 inches (8.9 cm)
Operational Temperature Range32 °F to 104 °F
Operational Humidity Range10% to 85%
Initial DRAM Size512 MB DDR2 SDRAM
Maximum DRAM Size2 GB DDR2 SDRAM
Initial Flash Storage256 MB
Maximum Flash Storage8 GB
Indicator LightsLink activity, power

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