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Name:
CISCO851W-G-A-K9
- Description:
- Duel E Security Router 802.11g FCC compliance
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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
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3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
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Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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CISCO851W-G-A-K9 Overview
CISCO851W-G-A-K9 is a compact, fixed-architecture enterprise router engineered for branch connectivity with integrated routing, switching, and wireless capabilities. It delivers versatile power options by supporting both AC and DC supplies (with redundancy where applicable) and incorporates dedicated WAN and LAN interfaces via 10/100 Ethernet ports for reliable network access.
CISCO851W-G-A-K9 enhances network performance with integrated VPN support, robust firewall protection, and high availability features that ensure continuous operation. Designed to serve enterprise and small business use cases, it offers modular expansion potential through integrated services such as voice, video, and WAN optimization while maintaining strong throughput and secure remote connectivity.
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CISCO851W-G-A-K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec |
| Power Source | AC Power Supply / DC Power Supply / Redundant |
| Routing Protocols | OSPF / EIGRP / RIP / Static Routing |
| Broadband | DSL / Cable / N/A |
| Architecture | Fixed |
| WAN Configuration | WAN |
| WAN Ports | 1 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100 |
| Wi-Fi Standard | WiFi 4 (802.11g) |
| Connectivity Type | Wired / Wireless |
| Network Protocols | TCP/IP, UDP, ICMP |
| Remote Management | Telnet, SSH, SNMP |
| Compliance Standards | IEEE 802.3, IEEE 802.11b/g |
| Wireless Support | Yes |
| Speed/Capacity | 100 Mbps |
| Firewall Features | Yes |
| Features | VPN, Firewall, Integrated Wireless, VoIP |
| Use Case | Enterprise / Small Business |
| Management | Managed |
| Form Factor | Desktop |
| Integrated Services | Voice, Video, WAN Optimization |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 100 Mbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection |
| Expansion Slots | N/A |
| Modular Slots Available | N/A |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 256 MB |
| Flash Memory | 128 MB |
| Interface Ports | RJ-45 |
| Power | 65 Watt |
| Device Type | Router |
| Product Name | CISCO851W-G-A-K9 |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
CISCO851W-G-A-K9 Use Case
Secure Branch Office Connectivity for SMBs
In a multi-site small or medium business environment, the CISCO851W-G-A-K9-Duel E Security Router 802.11g FCC compliance ensures stable, interference-free wireless links between headquarters and satellite offices. By leveraging certified 802.11g performance and built-in VPN, IT teams deliver encrypted data tunnels, voice-over-IP, and remote management without FCC violation risks. Outcome: streamlined branch deployment, regulatory assurance, and ongoing network reliability under heavy load.
Reliable Retail IoT & POS Integration
A nationwide retail chain integrates barcode scanners, digital price tags, and POS terminals via the Cisco 851W-G-A-K9 router’s 802.11g radio, fully FCC compliant to prevent channel overlap and signal degradation in crowded store environments. Network administrators enforce WPA2-Enterprise authentication and rogue AP detection to protect transaction data. Outcome: higher checkout throughput, zero FCC compliance penalties, and fortified customer data security.
Compliant Healthcare Telemetry and Guest Wi-Fi
In an outpatient clinic, medical telemetry devices and patient monitoring tools operate on a dedicated SSID broadcast by the CISCO851W-G-A-K9 router, maintaining strict FCC compliance to avoid interference with life-critical equipment. Simultaneously, a segmented Guest Wi-Fi network delivers secure internet access to visitors. Outcome: uninterrupted medical device operation, adherence to FCC regulations, and enhanced patient satisfaction through safe, managed connectivity.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | N/A | N/A | DSL / Cable / N/A |
| Built-in Security Features | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC / CE | FCC / CE | FCC / CE | FCC / CE | IEEE 802.3, IEEE 802.11b/g |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired / Wireless |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Device Type | Router | Router | Router | Gateway | Router |
| EMC | N/A | FCC / CE | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100/1000 | 10/100 |
| Expansion Slots | EHWIC | N/A | N/A | N/A | N/A |
| Features | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall / Syslog | VPN / NAT / QoS / Firewall | VPN / IPv6 Compatible / Firewall | VPN, Firewall, Integrated Wireless, VoIP |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 128 MB | 128 MB | 256 MB | 128 MB |
| Form Factor | Desktop | Desktop | Desktop | Desktop | Desktop |
| Height | N/A | N/A | N/A | N/A | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video | Voice | Voice / Video / Security | Voice / Video | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 / SFP | RJ-45 |
| 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 | 256 MB | 512 MB | 256 MB |
| Modular Slots Available | N/A | N/A | N/A | N/A | N/A |
| Network Protocols | IPv4, IPv6 | IPv4 / IPv6 | IPv4 / IPv6 | IPv4 / IPv6 / MPLS | TCP/IP, UDP, ICMP |
| Power | 20 W | 35 W | 65 Watts | 65 W | 65 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / DC Power Supply / Redundant |
| Product Name | Cisco 861W Integrated Services Router | CISCO886-SEC-K9 | CISCO887-K9 | Cisco 892 Wireless Aggregation Gateway | CISCO851W-G-A-K9 |
| Product Type | Enterprise Router | Branch Router | Enterprise Router | Gateway | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP, HTTP/HTTPS | Telnet / SSH / SNMP | CLI / SSH / Telnet / SNMP | CLI / SNMP | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / Static Routing | OSPF / EIGRP / RIP / Static Routing |
| Safety | N/A | UL / CE | N/A | N/A | N/A |
| Speed/Capacity | N/A | Gigabit | 100 Mbps | Gigabit | 100 Mbps |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | FCC / CE | N/A | N/A | N/A |
| Throughput Capacity | N/A | 0.3 Gbps | 20 Mbps | 1 Gbps | 100 Mbps |
| Use Case | Small Business | Enterprise | Enterprise Branch | Enterprise | Enterprise / Small Business |
| VPN Support | IPSec / SSL VPN / N/A | IPSec VPN / SSL VPN | IPSec / SSL VPN / DMVPN / N/A | IPSec | IPSec |
| WAN Configuration | WAN | Dual WAN | WAN | Dual WAN | WAN |
| WAN Ports | 1 WAN | 2 WAN | 1 WAN | 2 WAN | 1 WAN |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Wi-Fi Standard | WiFi 2 | N/A | N/A | WiFi 5 | WiFi 4 (802.11g) |
| Width | N/A | N/A | N/A | N/A | N/A |
| Wireless Support | Yes | No | No | Yes | Yes |
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Questions & Answers
Q
What is the Cisco 851W-G-A-K9 Dual E Security Router?
A
The Cisco 851W-G-A-K9 is an integrated security router featuring dual Ethernet WAN ports, a 4-port 10/100 switch, and 802.11g wireless connectivity designed for small-office networks.
Q
Which wireless standard does the Cisco 851W-G-A-K9 support?
A
The router supports IEEE 802.11g, delivering up to 54 Mbps of secure wireless connectivity for 2.4 GHz networks.
Q
Is the Cisco 851W-G-A-K9 FCC compliant?
A
Yes, the Cisco 851W-G-A-K9 meets FCC Part 15 Class B emissions limits and complies with all applicable FCC regulations for unlicensed devices.
Q
What security features are built into the Cisco 851W-G-A-K9?
A
It includes stateful packet inspection, hardware-accelerated IPsec VPN, NAT, ACLs, and WPA2 wireless encryption for comprehensive network protection.
Q
How many VPN tunnels can the 851W-G-A-K9 support simultaneously?
A
The router supports up to 25 concurrent IPsec VPN tunnels with AES or 3DES encryption for secure remote access.
Q
Can the Cisco 851W-G-A-K9 handle IPv6 traffic?
A
Yes, it offers full IPv6 routing support alongside IPv4, including OSPFv3, static routes, and DHCPv6 relay.
Q
What are the WAN connectivity options?
A
It provides two Ethernet WAN interfaces for load balancing or failover and one RJ-11 port for ISDN backup connectivity.
Q
Does the router include QoS functionality?
A
Yes, it features Cisco IOS QoS tools such as classification, policing, shaping, and low-latency queuing to prioritize voice and video traffic.
Q
How is the Cisco 851W-G-A-K9 managed?
A
You can manage it via the Cisco IOS CLI, web-based GUI (Cisco Configuration Express), or SNMP for automated network monitoring.
Q
What is the throughput capacity of this router?
A
It delivers up to 10 Mbps of packet forwarding performance, making it ideal for small-business Internet connections.
Q
What power requirements does the Cisco 851W-G-A-K9 have?
A
It operates on 12 VDC at 2 A using the included power adapter, with a maximum power consumption of 15 W.
Q
Which certifications does the 851W-G-A-K9 hold?
A
The router is certified to CSA, UL, CE, VCCI, C-Tick and complies with FCC and ICES-003 standards.
Q
What are the physical dimensions and operating environment?
A
It measures 222 × 175 × 35 mm, weighs 0.7 kg, and operates between 0 °C and 40 °C with 10–90% non-condensing humidity.
Q
Is the Cisco 851W-G-A-K9 suitable for small offices?
A
Yes, its compact form factor, integrated security, dual WAN support, and wireless access make it ideal for small to medium-sized offices.
Q
How do I update the firmware on the Cisco 851W-G-A-K9?
A
Use the Cisco IOS web GUI or TFTP/FTP via CLI to upload the latest firmware image, then reload the device to apply the update.
Q
What warranty and support options are available?
A
Cisco provides a one-year limited hardware warranty and offers optional SMARTnet® support for software updates and 24/7 technical assistance.
