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C1921-3G-G-K9
Cisco 1900 Series Wireless WAN Bundle C1921-3G-G-K9
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C1921-3G-G-K9 is a fixed-architecture enterprise router that offers efficient AC power supply operation and robust dual WAN connectivity through its integrated 10/100 Ethernet and 3G interfaces. Designed with enhanced VPN capabilities and built-in security features, it delivers reliable throughput and redundancy to meet demanding performance requirements in real-world branch office environments.
Engineered to provide integrated services such as voice, data, and 3G wireless connectivity, the C1921-3G-G-K9 also supports modular expansion via EHWIC slots for additional interfaces, ensuring scalability and flexibility. Its support for standard routing protocols, advanced firewall features, and QoS functionality makes it ideal for enterprise and branch office use cases that demand secure, high-performance, and versatile network solutions.
C1921-3G-G-K9 price is $1,091.00, a 47.9% saving from the Cisco list price of $2,095.00. C1921-3G-G-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C1921-3G-G-K9 for additional pricing. Browse the full Router Isr 1900 series or explore all Cisco products.
A national retail chain deploys the Cisco 1900 Series Wireless WAN Bundle (C1921-3G-G-K9) to layer 4G LTE as a secondary WAN link behind its primary MPLS circuit. By configuring automated cellular failover and priority-based Quality of Service (QoS), the solution ensures uninterrupted credit-card transactions, real-time inventory synchronization and secure PCI-compliant data transmission. Outcome: 99.99% network uptime, 50% reduction in branch downtime and enhanced customer experience.
A large manufacturing plant integrates the Cisco C1921-3G-G-K9 router to aggregate sensor telemetry from distributed automation cells over a secure VPN tunnel across 3G/4G networks. Leveraging the Cisco 1900 Series Wireless WAN Bundle’s embedded security and traffic-shaping features, the facility achieves low-latency data delivery to its SCADA and analytics platforms. Outcome: 15% boost in overall equipment effectiveness (OEE), predictive maintenance enablement and elimination of data-loss incidents.
An urban fire department outfits its mobile command units with the Cisco 1900 Series Wireless WAN Bundle (C1921-3G-G-K9) to establish instant 3G/4G WAN connectivity at disaster sites. The integrated cellular modem and modular design streamline field setup, while the router’s built-in VPN and high-availability features support live video feeds, VoIP dispatch and GIS mapping. Outcome: 80% faster network deployment, uninterrupted communications during crises and improved situational awareness for first responders.
To get the detailed certification, please go to the Compliance Center.
 C1921-3G-G-K9 |  C1921-3G-V-K9 |  CISCO1941W-P/K9 |  C1921-3G-S-K9 |  CISCO1921/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | 3G | 3G | N/A | 3G | N/A |
| Built-in Security Features | Firewall, VPN | Firewall, Intrusion Prevention, Encryption | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention |
| Compliance Standards | FCC, CE, UL | FCC, CE | IEEE 802.3 / IEEE 802.11 | FCC / CE | IEEE 802.3, IEEE 802.1Q |
| Connectivity Type | Wired | Wired | Wired / Wireless / Ethernet | Wired | Wired |
| Depth | N/A | N/A | 12.5 inches | N/A | 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 Ethernet | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC / NIM |
| Features | VPN, Routing, Firewall, QoS, Integrated Services | VPN, IPv6 Compatible, Firewall, Encryption | VPN / VoIP / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible / Integrated Services | VPN, VoIP, IPv6 Compatible, Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 128 MB | 256 MB | 256 MB |
| Form Factor | Desktop / Rack-mount | Desktop | Rack-mount | Desktop / Rack-mount | Desktop |
| Height | N/A | N/A | 1.73 inches | N/A | N/A |
| High Availability Support | Not Supported | Supported | Not Supported | Supported | Supported |
| Integrated Services | Voice, Data, 3G Wireless | Voice, Video, WAN Optimization | Voice | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45, 3G Interface | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 2x 10/100 Ethernet | 2 LAN Ports | 4 LAN Ports | 2 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 512 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 1 Slot | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6 | IPv4 / IPv6 / MPLS | IPv4 / IPv6 | IPv4, IPv6 |
| Power | 65W | 65 Watt | 33 W | 65 Watt | 46 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1921 Integrated Services Router (C1921-3G-G-K9) | Cisco 1921 Integrated Services Router 3G Voice | Cisco 1941 Wireless Integrated Services Router | Cisco 1921 Integrated Services Router (C1921-3G-S-K9) | Cisco 1921 Integrated Services Router |
| Product Type | Integrated Services Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI, SNMP, Telnet, SSH | SSH, Telnet, SNMP | Telnet / SSH / SNMP | CLI / SNMP / SSH | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | 50 Mbps | 100 Mbps | N/A | Fast Ethernet | Fast Ethernet |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 50 Mbps | 75 Mbps | 0.075 Gbps | 100 Mbps | 0.075 Gbps |
| Use Case | Enterprise / Branch Office | Business, Branch Office | Business | Enterprise / Small Business | Business / Small Business |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN | IPSec / DMVPN / N/A |
| WAN Configuration | Dual WAN | WAN | Dual WAN | WAN | WAN |
| WAN Ports | 1x 10/100 Ethernet, 1x 3G | 2 WAN Ports | 2 WAN | 1 WAN | 1 WAN |
| Weight | N/A | N/A | 7.3 lbs | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | WiFi 3 | N/A | N/A |
| Width | N/A | N/A | 17.2 inches | N/A | N/A |
| Wireless Support | No | No | Yes | No | No |
We've been using the 3G WAN bundle for remote offices. It's reliable, offers good speed, and provides seamless connectivity even in areas with limited wired options.
Perfect for businesses needing reliable 3G connectivity. Easy to set up and offers consistent performance in areas with limited broadband access.
Great for wireless WAN deployments. The 3G bundle is cost-effective, reliable, and provides great performance for our branch offices.
Solid performance for remote offices. Connectivity is reliable, and it works well as a backup or primary connection in remote areas.
Easy to deploy and manage. This router ensures that our remote locations stay connected with minimal downtime.
The Cisco 1900 Series Wireless WAN Bundle C1921-3G-G-K9 is an integrated router package combining a C1921 ISR, a factory-installed 3G WAN module, and SIM tray adapter for secure, high-availability mobile connectivity.
Key features include dual onboard Gigabit Ethernet, integrated cellular 3G connectivity, modular expansion slots, advanced security with firewall and VPN, and Cisco IOS Software support for flexible deployments.
The C1921-3G-G-K9 supports HSPA+ and UMTS 3G cellular standards, enabling reliable WAN backup and primary connectivity where wired links are unavailable.
The C1921-3G-G-K9 delivers up to 25 Mbps routing performance and up to 3 Mbps cellular uplink/downlink depending on network conditions.