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C1921-3G-G-SEC/K9
Cisco 1900 Series Wireless WAN Bundle C1921-3G-G-SEC/K9
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C1921-3G-G-SEC/K9 is a fixed architecture enterprise router engineered for secure branch connectivity, delivering robust VPN features and integrated security functions alongside 3G broadband support. It offers versatile power options including both AC and redundant power supplies with reliable 10/100 Ethernet interfaces configured for dedicated WAN and LAN connectivity.
Designed to support integrated services such as voice and advanced security, the router features modular expansion via EHWIC slots for enhanced functionality. Its strong throughput performance, built-in redundancy, and support for multiple routing protocols make it an ideal solution for enterprise branch deployments and demanding business environments.
C1921-3G-G-SEC/K9 price is $1,325.00, a 47.9% saving from the Cisco list price of $2,545.00. C1921-3G-G-SEC/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C1921-3G-G-SEC/K9 for additional pricing. Browse the full Router Isr 1900 series or explore all Cisco products.
A national retail chain deploys the C1921-3G-G-SEC/K9 Cisco 1900 Series Wireless WAN Bundle at remote franchise locations to provide primary LTE connectivity and instant 3G/4G backup for POS terminals. By automatically fail-overing between wired broadband and cellular WAN, the solution ensures uninterrupted sales, PCI DSS compliance and centralized configuration management via Cisco IOS Software. Outcome: 99.9% network uptime, reduced revenue loss from outages and streamlined IT operations.
A regional emergency management agency outfits mobile command centers with the C1921-3G-G-SEC/K9 to establish secure, resilient 3G/4G WAN links when fiber and MPLS circuits are offline. Integrated Cisco Secure Firewall capabilities protect incident data and voice/video feeds. Outcome: immediate, encrypted connectivity in disaster zones, accelerated situational awareness and improved coordination among first responders.
A telemedicine provider equips mobile clinics with the C1921-3G-G-SEC/K9 to deliver encrypted 3G/4G VPN tunnels back to the hospital’s core network. This setup enables real-time access to Electronic Health Records (EHR), HIPAA-compliant video consultations and secure transmission of diagnostic images over cellular links. Outcome: expanded rural patient reach, enhanced data security and seamless clinician collaboration.
To get the detailed certification, please go to the Compliance Center.
 C1921-3G-G-SEC/K9 |  CISCO1941W-A/K9 |  C1921-3G-V-K9 |  CISCO1921-T1SEC/K9 |  C1-CISCO1921/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | 3G | N/A | 3G | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Encryption | Firewall / Intrusion Prevention / IPSec | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE | IEEE 802.11 / IEEE 802.3 / RoHS | FCC, CE | FCC / CE / RoHS | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired / Wireless / Ethernet | Wired | Wired | Wired |
| Depth | 11.5 inches | 10.10 inches | N/A | 6.45 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | FCC / CE |
| Ethernet Technology | 10/100 | 10/100 | 10/100 Ethernet | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC |
| Features | VPN / Firewall / IPv6 Compatible / MPLS | VPN / IPv6 Compatible / Firewall / Integrated Wireless | VPN, IPv6 Compatible, Firewall, Encryption | VPN / Firewall / IPSec / NAT / ACL | VPN / VoIP / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 128 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Desktop | Desktop | Desktop | Desktop |
| Height | 1.75 inches | 1.73 inches | N/A | 1.09 inches | N/A |
| High Availability Support | Supported | Not Supported | Supported | Not Supported | Not Supported |
| Integrated Services | Voice | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video | Voice |
| Interface Ports | RJ-45 | RJ-45 / Combo Ports | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 2 LAN Ports | 2 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 1 Slot | 2 Slots |
| Network Protocols | IPv4 / IPv6 / MPLS | IPv4 / IPv6 | IPv4, IPv6 | IPv4 / IPv6 / OSPF / EIGRP / RIP / BGP | IPv4, IPv6 |
| Power | 65 W | 46W | 65 Watt | 66 Watt | 65 |
| Power Source | AC Power Supply / Redundant Power Supply | AC Power Supply / Redundant | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1921 Integrated Services Router (C1921-3G-G-SEC/K9) | CISCO1941W-A/K9 Integrated Services Router | Cisco 1921 Integrated Services Router 3G Voice | Cisco 1921 Integrated Services Router with T1/E1 | C1-CISCO1921/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 | Cisco SDM / Cisco Prime | SSH, Telnet, SNMP | Telnet / SSH / SNMP | Telnet, SSH, SNMP |
| Routing Protocols | EIGRP / OSPF / RIP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | UL, cUL |
| Speed/Capacity | N/A | 100Mbps | 100 Mbps | 100 Mbps | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | TIA/EIA |
| Throughput Capacity | 0.05 Gbps | 75 Mbps | 75 Mbps | 0.1 Gbps | 0.075 |
| Use Case | Enterprise | Business / Small Business / Enterprise | Business, Branch Office | Business / Small Business | Small Business |
| VPN Support | IPSec / DMVPN | IPSec / SSL VPN / DMVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / GRE / DMVPN |
| WAN Configuration | Dual WAN | Dual WAN | WAN | WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN Ports | 1 T1/E1 Port | 2 WAN |
| Weight | 12 lbs | 8.7 lbs | N/A | 5.5 lbs | N/A |
| Wi-Fi Standard | N/A | WiFi 4 | N/A | N/A | N/A |
| Width | 17.3 inches | 8.69 inches | N/A | 8.73 inches | N/A |
| Wireless Support | No | Yes | No | No | No |
Excellent for secure wireless WAN deployments. Connectivity is stable and management fits perfectly into our Cisco-based network.
Reliable 3G solution with added security. It has performed well for our distributed sites without unexpected downtime.
Strong balance of performance and security. Works exactly as expected in remote office environments.
Easy to deploy and maintain. Security licensing makes it a complete solution for cellular WAN needs.
Consistent connectivity and dependable security. A practical choice for businesses relying on mobile WAN links.
The Cisco C1921-3G-G-SEC/K9 is an integrated 1900 Series router with built-in 3G wireless WAN, Gigabit Ethernet, and advanced security features for secure branch connectivity.
The bundle includes a Cisco Enhanced High-Speed WAN Interface Card (EHWIC) for 3G HSPA+ connectivity, enabling reliable cellular backup or primary WAN access.
The C1921-3G-G-SEC/K9 supports up to 85 Mbps of aggregate NAT throughput and up to 75 Mbps IPsec VPN throughput, depending on licensing and configuration.
It includes hardware-accelerated VPN encryption, stateful firewall, intrusion prevention (IPS), URL filtering, and Cisco Security Contexts with a SEC license for multi-tenant segmentation.