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Strong 3G backup and advanced security. Cisco 1841 keeps our branch online during link failures.
C1841-3G-G-SEC/K9
Cisco1841, HWIC-3G-GSM, 64MB FL /256MB DRAM, Adv Security
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C1841-3G-G-SEC/K9
- Description:
- Cisco1841, HWIC-3G-GSM, 64MB FL /256MB DRAM, Adv Security
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- Brand:
- Cisco
- GTIN:
- 882658218217
- Condition:
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C1841-3G-G-SEC/K9 Overview
C1841-3G-G-SEC/K9 is a fixed, enterprise-class integrated services router engineered with a robust architecture that supports advanced security and VPN features. Designed for branch and small business deployments, it offers versatile power options with an AC power supply, dual 10/100 Ethernet ports that serve both WAN and LAN connectivity, and integrated services for secure remote access and enhanced voice and data performance.
Built to deliver reliable throughput with a capacity of up to 35 Mbps, the C1841-3G-G-SEC/K9 incorporates modular capabilities with two EHWIC slots for scalable expansion. It features stateful firewall protection, IPSec VPN support, and high-quality QoS, making it ideal for applications requiring secure, real-time communications and redundancy in mission-critical network environments.
C1841-3G-G-SEC/K9 price is is available on request. Get immediate quote.
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C1841-3G-G-SEC/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec, GRE, DMVPN
- Power Source
- AC Power Supply
- Routing Protocols
- OSPF, EIGRP, RIP, BGP, Static Routing
- Broadband
- 3G
- Architecture
- Fixed
- WAN Configuration
- Single WAN
- WAN Ports
- 2 x 10/100 Ethernet
- LAN Ports
- 2 x 10/100 Ethernet
- Ethernet Technology
- 10/100
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- IPv4, IPv6
- Remote Management
- Telnet, SSH, SNMP
- Compliance Standards
- FCC, CE
- Wireless Support
- No
- Speed/Capacity
- Fast Ethernet
- Firewall Features
- Yes
- Features
- VPN, NAT, ACL, QoS, Firewall
- Use Case
- Enterprise, Small Business, Branch Office
- Management
- Managed
- Form Factor
- Desktop
- Integrated Services
- Security, VPN
- High Availability Support
- Not Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 35 Mbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall, IPSec, Intrusion Prevention
- Expansion Slots
- 2 EHWIC Slots
- Modular Slots Available
- 2 Slots
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 128 MB
- Flash Memory
- 256 MB
- Interface Ports
- 2 x 10/100 Ethernet, 1 x Auxiliary Port
- Power
- 65W
- Device Type
- Router
- Product Name
- Cisco C1841-3G-G-SEC/K9 Integrated Services Router
- Height
- 1.75 inches
- Width
- 11.5 inches
- Depth
- 9.25 inches
- Weight
- 12 lbs
C1841-3G-G-SEC/K9 Use Case
Redundant 3G-GSM WAN Failover for Branch Office Continuity
Scenario: A multi-site enterprise deploys the C1841-3G-G-SEC/K9 (Cisco 1841) with HWIC-3G-GSM, 64MB flash/256MB DRAM and Advanced Security to provide redundant 3G WAN connectivity for critical branch office applications. The integrated VPN and firewall enable encrypted traffic failover from primary MPLS links. Outcome: Achieves 99.99% uptime, sub-15-second failover, and secure data transmission, minimizing downtime costs.
Rapid Deployment of Secure Pop-Up Retail and Event Networks
Scenario: A retail chain leverages the Cisco C1841-3G-G-SEC/K9 with HWIC-3G-GSM and Advanced Security to rapidly deploy secure pop-up point-of-sale and guest Wi-Fi at trade shows. The unit’s compact form factor and fixed 3G modem deliver turnkey connectivity and PCI-compliant VPN to headquarters. Outcome: Enables 10-minute setup, ensures customer data protection, and increases event revenue by up to 25%.
Secure Industrial IoT Telemetry for Remote Monitoring
Scenario: An energy provider implements the Cisco C1841-3G-G-SEC/K9 with HWIC-3G-GSM, 64MB flash/256MB DRAM and Advanced Security to collect IoT telemetry from remote oil & gas sites over 3G networks. Encrypted VPN tunnels and access controls deliver safe data to the SCADA backend in real time. Outcome: Improves operational visibility, cuts manual maintenance visits by 40%, and secures critical infrastructure communications.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 C1841-3G-G-SEC/K9 |  CISCO1841-ADSL2-I |  C1841-T1SEC-V2/K9 |  C1861-SRST-C-F/K9 |  C1861-SRST-B/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | 3G | DSL | N/A | N/A | N/A |
| Built-in Security Features | Firewall, IPSec, Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / IPSec VPN | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC, CE | FCC / CE | FCC, CE, UL | FCC, CE | IEEE 802.3 / IEEE 802.3u / FCC / CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 9.25 inches | N/A | N/A | 14.10 inches | 12 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | FCC / CE |
| Ethernet Technology | 10/100 | 10/100 Fast Ethernet | 10/100 | 10/100 | 10/100 |
| Expansion Slots | 2 EHWIC Slots | EHWIC / NIM | EHWIC | EHWIC | EHWIC |
| Features | VPN, NAT, ACL, QoS, Firewall | VPN / Firewall / IPv6 Compatible | VPN / VoIP / Firewall / IPv6 Compatible | VPN, NAT, QoS, Firewall, SRST | VPN / Voice / NAT / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 128 MB | 256 MB | 256 MB |
| Form Factor | Desktop | Desktop / Rack-mount | Rack-mount | Desktop | Desktop |
| Height | 1.75 inches | N/A | N/A | 1.73 inches | 1.72 inches |
| High Availability Support | Not Supported | Not Supported | Supported | Supported | Not Supported |
| Integrated Services | Security, VPN | Voice / WAN Optimization | Voice / Data / Security | Voice, Data | Voice |
| Interface Ports | 2 x 10/100 Ethernet, 1 x Auxiliary Port | RJ-45 / ADSL | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 2 x 10/100 Ethernet | 2 LAN Ports | 4 LAN Ports | 4 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 128 MB | 128 MB | 256 MB | 256 MB | 512 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 1 Slot | 2 Slots |
| Network Protocols | IPv4, IPv6 | IP | TCP/IP | IPv4, IPv6, OSPF, EIGRP, RIP, BGP | IPv4 / IPv6 / MPLS / VPN |
| Power | 65W | 75 Watt | 38 W | 65 Watts | 45 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco C1841-3G-G-SEC/K9 Integrated Services Router | CISCO1841-ADSL2-I | Cisco 1841 Integrated Services Router - T1SEC | Cisco 1861 Integrated Services Router with SRST | Cisco 1861 Integrated Services Router with SRST |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Integrated Services Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP | Telnet / SSH / SNMP | Telnet / SSH / SNMP | Telnet, SSH, SNMP | Telnet / SSH / SNMP |
| Routing Protocols | OSPF, EIGRP, RIP, BGP, Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | RIP / OSPF / EIGRP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | UL / CE / RoHS |
| Speed/Capacity | Fast Ethernet | N/A | N/A | Fast Ethernet | Gigabit |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 35 Mbps | 35 Mbps | 0.033 Gbps | 20 Mbps | 0.035 Gbps |
| Use Case | Enterprise, Small Business, Branch Office | Enterprise / Small Business | Enterprise | Enterprise, Small Business, Branch Office | Enterprise / Small Business |
| VPN Support | IPSec, GRE, DMVPN | IPSec / SSL VPN / GRE | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN |
| WAN Configuration | Single WAN | WAN | WAN | Dual WAN | WAN |
| WAN Ports | 2 x 10/100 Ethernet | 1 WAN (ADSL2) | Modular WAN | 2 WAN | 2 WAN |
| Weight | 12 lbs | N/A | N/A | 16.80 lbs | 9.5 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 11.5 inches | N/A | N/A | 17.30 inches | 17 inches |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
G
Grace Johnson
4
Reliable router with smooth GSM/HSPA failover. Security features are robust and easy to manage.
M
Megan White
5
Consistent uptime with 3G connectivity. Ideal for remote sites needing secure internet access.
D
David Harris
3
Stable performance and trusted Cisco quality. Backup connectivity ensures business continuity.
Z
Zoe Mitchell
4
Good balance of wireless, routing, and security. Handles daily operations efficiently.
Questions & Answers
What is the Cisco 1841 C1841-3G-G-SEC/K9 router?
The Cisco 1841 C1841-3G-G-SEC/K9 is a branch office router featuring a HWIC-3G-GSM module, 64 MB Flash, 256 MB DRAM, and advanced security to deliver secure, reliable WAN connectivity.
What are the main hardware specifications of the Cisco 1841 router?
The Cisco 1841 offers a dual 10/100 Fast Ethernet WAN interface, one EHWIC slot, one HWIC slot (3G-GSM), 64 MB Flash memory, 256 MB DRAM, and an internal power supply.
Which WAN interfaces does the HWIC-3G-GSM module support?
The HWIC-3G-GSM supports quad-band GSM/EDGE connectivity and tri-band UMTS/HSPA for global cellular WAN access in band 850/900/1700/1900/2100 MHz frequencies.
What advanced security features are included in the C1841-3G-G-SEC/K9?
This model includes hardware-accelerated encrypted VPN, stateful firewall, intrusion prevention (IPS), content filtering, and secure access control to protect branch networks.