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by Cisco
Product Line: Cisco 2900 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 CISCO2921K9 features embedded hardware-based cryptography and acceleration to enhance security, supports up to 100 Cisco Unified SRST sessions and 100 Cisco Unified CCME sessions for comprehensive voice communications. It is equipped with 3 RJ-45-based ports, 1 SFP-based port, 4 EHWIC slots, and 3 DSP slots for flexible connectivity and expansion options. Additionally, the router provides 512 MB DRAM and 256 MB flash memory, expandable to 2 GB DRAM, and includes a range of power supply options including AC, PoE, and DC, within a 2 RU rack height for efficient data center integration.

Key Feature for the CISCO2921K9

  • What is the maximum number of Cisco Unified SRST sessions supported?
    The device supports up to 100 Cisco Unified SRST sessions.
  • How many RJ-45-based ports are available?
    There are 3 RJ-45-based ports.
  • Can the device support Cisco Unified CCME sessions? If so, how many?
    Yes, the device can support up to 100 Cisco Unified CCME sessions.
  • What are the options for power supply?
    The device has AC, PoE, and DC power supply options.
  • How many SFP-based ports does the device have?
    There is 1 SFP-based port.
  • What is the standard memory and the maximum memory supported?
    The standard memory is 512 MB DRAM, and it supports up to 2 GB DRAM.
  • Does the device feature a USB console port?
    Yes, there is 1 USB console port (Type B).
  • What are the dimensions of the device?
    The dimensions are 3.5 x 17.25 x 18.5 inches (H x W x D).
  • How many EHWIC slots are available?
    There are 4 EHWIC slots available.
  • What feature set is included with the device?
    The device includes the IP Base feature set.

Product Review

The Cisco CISCO2921K9 offers versatile connectivity options with three RJ-45 ports, one SFP port, and comprehensive support for WAN, including three onboard GE ports, making it suitable for varied networking needs. However, its initial 512 MB DRAM and 256 MB flash memory may limit performance in demanding environments, though it supports upgrades to 2 GB DRAM. Additionally, the integration of hardware-based cryptography accelerates secure data transmission, but the device's power consumption and size require consideration for deployment in space-constrained or energy-sensitive setups.


The Cisco CISCO2921K9 is a versatile integrated services router designed to provide a secure, high-performance networking solution suitable for a wide range of applications. Its architecture is engineered to deliver significant performance improvements and flexibility for network deployments. This product overview focuses on the hardware specifications that make the CISCO2921K9 an ideal choice for businesses requiring reliable and scalable networking hardware. At the core of the CISCO2921K9 are its embedded hardware-based cryptography and acceleration features, ensuring secure data transmission without compromising on speed. This capability is essential for organizations that prioritize data security and require efficient network performance. Additionally, the router supports up to 100 Cisco Unified SRST sessions and 100 Cisco Unified CCME sessions, providing robust support for voice communications within a network. Connectivity options on the CISCO2921K9 are comprehensive, including three RJ-45-based ports and one SFP-based port, facilitating both copper and fiber connections. It also features one service module slot and one double-wide service module slot, enhancing its expandability and versatility in handling various network modules and interfaces. The router is equipped with three onboard WAN 10/100/1000 GE ports, offering high-speed internet connectivity and support for a wide range of network configurations. It also boasts four Enhanced High-Speed WAN Interface Card (EHWIC) slots, three Digital Signal Processor (DSP) slots, and one Internal Services Module (ISM) slot. These slots provide significant flexibility in adding voice, video, data, and security services to the router. In terms of memory and storage, the CISCO2921K9 comes with 512 MB of DRAM and 256 MB of flash memory, with support for up to 2 GB of DRAM. This capacity ensures efficient processing and storage of routing information and network configurations. The router also features two external USB 2.0 Flash memory slots (Type A) and one USB console port (Type B) for simplified configuration and management. Power supply options include AC, PoE, and DC, with an AC input voltage range of 100 to 240 VAC auto-ranging. The router's typical power consumption is 60 W, making it an energy-efficient choice for enterprise environments. Its size is 3.5 x 17.25 x 18.5 inches, and it occupies a rack height of 2 RU, ensuring it fits comfortably in standard networking racks. Key hardware specifications include:
  • Embedded hardware-based cryptography and acceleration for secure, high-performance networking.
  • Support for up to 100 Cisco Unified SRST sessions and 100 Cisco Unified CCME sessions.
  • Comprehensive connectivity options with three RJ-45-based ports, one SFP-based port, and multiple module slots for expandability.
Overall, the Cisco CISCO2921K9 integrated services router is engineered to meet the demands of modern network infrastructures, offering a blend of performance, security, and flexibility. Its hardware specifications cater to a variety of networking applications, making it a suitable choice for businesses looking to upgrade or expand their network capabilities.


Model NumberCISCO2921K9
Integrated Encryption HardwareYes
Survivable Remote Site Telephony Sessions100
CCME Sessions Capacity100
Ports with RJ-45 Interface3
SFP Port Quantity1
Slots for Service Modules1
Slots for Double-Width Service Modules1
Gigabit Ethernet WAN Ports Onboard3
EHWIC Slots Count4
DSP Slot Availability3
ISM Slot Availability1
Standard Memory512 MB DRAM
Standard Flash Storage256 MB
Installed IOSIP Base
Available Double-Wide EHWIC Slots2
Max DRAM Capacity2 GB
USB 2.0 Type A Ports for External Memory2
USB Console Interface (Type B)1
RS-232 Console Port1
Power Supply VariantsAC, PoE, DC
Voltage Requirement (AC)100 to 240 VAC Auto Ranging
Max AC Surge Current< 50 A
Power Consumption (Typical)60 W
Dimensions (H x W x D)3.5 x 17.25 x 18.5 in.
Unit Size Standard2 Rack Units

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