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CISCO2921/K9
Cisco 2921 Router w/3 GE,4 EHWIC,3 DSP,1 SM,256MB CF,512MB D...
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CISCO1/K9 is a high-performance enterprise router built on a modular architecture that supports integrated services such as voice, video, and data routing. It delivers multiple power options with both AC and redundant power supplies, and incorporates dedicated WAN and LAN interfaces optimized for reliable connectivity.
CISCO1/K9 offers modular capabilities with expansion slots for EHWIC or NIM modules, robust VPN features including IPSec and DMVPN, and advanced throughput and redundancy mechanisms that ensure enduring performance in branch office, enterprise, and small business use cases.
CISCO2921/K9 price is $1,556.00, a 68.1% saving from the Cisco list price of $4,875.00. CISCO2921/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CISCO2921/K9 for additional pricing. Browse the full Router Isr 2900 series or explore all Cisco products.
In a multi-site retail organization, the CISCO2921/K9 router delivers three dedicated GE ports and four EHWIC slots to link POS systems, inventory databases, and cloud services over MPLS and broadband failover. The integrated IP Base feature and 256 MB CF ensure fast boot and routing table caching, while 512 MB DRAM supports large BGP and OSPF deployments. Outcome: 99.99% uptime, sub-50 ms latency across sites, and simplified WAN management with Cisco IOS security compliance.
A financial services firm leverages the CISCO2921/K9 to terminate up to 200 IPsec tunnels using its DSP modules and SM slot for advanced encryption. Three GE interfaces aggregate primary and backup internet links, and 512 MB DRAM accelerates VPN throughput. Benefit: Scalable, low-latency VPN provisioning for mobile workforces and satellite offices, achieving 3x faster VPN failover and full compliance with PCI-DSS encryption standards.
In a healthcare provider network, the CISCO2921/K9 powers multimedia collaboration with three DSP channels handling VoIP calls and video conferencing. Four EHWIC slots accommodate additional voice ports and security modules, while 256 MB CompactFlash stores call detail records locally. Outcome: 40% reduction in telecom costs, crystal-clear voice quality, and rapid scalability for emergency telemedicine services.
To get the detailed certification, please go to the Compliance Center.
 CISCO2921/K9 |  C2921-VSEC-SRE/K9 |  CISCO2951-HSEC+/K9 |  C2911-VSEC-CUBE/K9 |  C2921-VSEC-CUBE/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Fixed |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / VPN |
| Compliance Standards | FCC / CE | FCC / CE | RoHS, FCC, CE | FCC / CE / UL | IEEE / FCC / CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 14.5 in | N/A | 18 inches | N/A | 15.0 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | FCC Class A / EN 55022 |
| Ethernet Technology | 10/100/1000 | 10/100 | 10/100 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | EHWIC / NIM | EHWIC, NIM | EHWIC / NIM | EHWIC / NIM |
| Features | VPN / VoIP / IPv6 Compatible / Firewall / Integrated Services | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN, Firewall, Integrated Security, Modular, IPv6 Compatible | VPN / Firewall / Voice / Video / Integrated Services | VPN / Firewall / Intrusion Prevention / NAT / QoS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 in | N/A | 4.5 inches | N/A | 1.7 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP | RJ-45 | RJ-45, SFP | RJ-45 / SFP | RJ-45 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 256 MB | 512 MB | 512 MB | 512 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 3+ Slots | 3+ Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 / OSPF / EIGRP / BGP / RIP | IPv4, IPv6, MPLS | IP, UDP, TCP, OSPF, RIP, BGP, EIGRP, IPsec, SSL, MPLS | IPv4 / IPv6 / MPLS / PPP | IPv4 / IPv6 |
| Power | 65W | 150 W | 350 Watts | N/A | 350 W |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply |
| Product Name | Cisco 2921 Integrated Services Router | Cisco 2921 Integrated Services Router with Virtual Security and Services Ready Edition | Cisco 2951 Integrated Services Router with High Security (CISCO2951-HSEC+/K9) | Cisco 2911 Integrated Services Router with Virtual Security and CUBE | Cisco 2921-VSEC-CUBE/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH / Telnet / SNMP | CLI, SNMP, Cisco SDM | SSH, Telnet, SNMP | CLI / SNMP / Telnet / SSH | CLI / SNMP / SSH |
| Routing Protocols | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing / N/A | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing / N/A | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | UL / cUL / CE |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | No | Yes |
| Telecom | N/A | N/A | N/A | N/A | TIA/EIA |
| Throughput Capacity | 0.025 Gbps | 0.025 Gbps | 75 Mbps | 75 Mbps | 75 Mbps |
| Use Case | Enterprise / Small Business / Branch Office | Enterprise | Enterprise | Business / Enterprise | Enterprise |
| VPN Support | IPSec / DMVPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A | IPSec / SSL VPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | Modular WAN | 2 WAN | 2 WAN |
| Weight | 39.7 lbs | N/A | 26 lbs | N/A | 15 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.2 in | N/A | 17 inches | N/A | 17.5 inches |
| Wireless Support | No | No | No | No | No |
Cisco 2921 router provides stable and efficient performance. Handles multiple WAN links with minimal configuration effort.
Reliable for medium branch offices. Ensures secure, consistent network operations and voice communications.
Easy to deploy and manage. Maintains predictable uptime for critical enterprise applications.
High-performing and durable. Perfect for branch office environments needing reliable connectivity and security.
Efficient and robust Cisco solution. Supports multiple WAN connections with stable and secure communications.
The Cisco 2921 Router features 3 Gigabit Ethernet ports, 4 EHWIC slots, 3 DSP modules, 1 service module slot, 256 MB Compact Flash, 512 MB DRAM, and an IP Base license for integrated security, voice, and data services.
It supports 3 built-in Gigabit Ethernet ports, 4 Enhanced High-Speed WAN Interface Card (EHWIC) slots, 3 DSP module slots for voice, and 1 service module slot for advanced services.
The router includes 512 MB of DRAM for high-performance routing and 256 MB of Compact Flash for system images, configurations, and logs.
The Cisco 2921 Router ships with an IP Base license, offering essential routing, dynamic path selection, and fundamental security features out of the box.