United States
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
CISCO851-K9
Original Stock
Ready to Ship
Ethernet SOHO Security Router
FEATURED DEAL
Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
CISCO851-K9
- Description:
- Ethernet SOHO Security Router
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 799599486561
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 90
- List Price:
$399.00
- Price:
$120.0069.9% off
Quantity:
1
100% Genuine Guaranteed
Global Delivery
Business Terms / PO Accepted
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
4Global Offices
25+Distribution Points
100+Countries Served
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Verified By Federal Bodies
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
- RegisteredCAGE CODE: 97UU8
- VerifiedD-U-N-S® #: 118879150
- ListedUEI: VFVEQ7Q9LH31
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
10+Years Operating
20,000+Clients Served
150K+SKUs Available
CISCO851-K9 Overview
CISCO851-K9 is a fixed architecture enterprise router engineered with integrated services—including voice and video—and advanced VPN capabilities that secure remote communications. It is powered by redundant AC power supply options and offers dedicated WAN and LAN interfaces to support reliable connectivity in demanding network environments.
CISCO851-K9 delivers consistent performance with competitive throughput capacity and built-in firewall and redundancy features, making it well suited for enterprise, branch, and small business use cases. Its design incorporates modular expansion capabilities, robust routing protocols, and comprehensive integrated services to meet evolving network demands.
CISCO851-K9 price is is available on request. Get immediate quote.
Request bulk order quote for CISCO851-K9 for additional pricing. Browse the full Router Isr 800 series or explore all Cisco products.
CISCO851-K9 Specifications
- Product Type
- Enterprise Router
- Brand
- Cisco
- VPN Support
- IPSec / SSL VPN / N/A
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Architecture
- Fixed
- WAN Configuration
- WAN
- WAN Ports
- 1 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100
- Wi-Fi Standard
- WiFi 4
- Connectivity Type
- Wired
- Network Protocols
- IP, IPv6, QoS
- Remote Management
- Telnet, SSH, SNMP
- Compliance Standards
- FCC, CE
- Wireless Support
- Yes
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN / IPv6 Compatible / Firewall
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Desktop
- Integrated Services
- Voice / Video
- High Availability Support
- Not Supported
- Throughput Capacity
- 0.025 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall / Intrusion Prevention / Malware Protection
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 256 MB
- Flash Memory
- 128 MB
- Interface Ports
- RJ-45
- Power
- 22.8 Watt
- Device Type
- Router
- Product Name
- Cisco 851 Wireless Services Router
- Height
- 1.0 inches
- Width
- 9.0 inches
- Depth
- 8.0 inches
- Weight
- 4.5 lbs
CISCO851-K9 Use Case
Secure Remote Branch Connectivity with CISCO851-K9-Ethernet SOHO Security Router
In a multi-site professional services firm, the CISCO851-K9-Ethernet SOHO Security Router establishes site-to-site IPsec VPN tunnels between head office and satellite branches, ensuring encrypted data exchange for client files and billing systems. This deployment delivers enterprise-grade firewall protection, automatic failover on dual-WAN links, and a 40% reduction in network downtime, empowering secure, uninterrupted collaboration across remote offices.
Hardened Retail Point-of-Sale Protection using CISCO851-K9-Ethernet SOHO Security Router
A boutique retailer integrates the CISCO851-K9-Ethernet SOHO Security Router at its storefront to isolate point-of-sale terminals, inventory servers, and guest Wi-Fi on segmented VLANs with advanced intrusion prevention (IPS). By enforcing deep-packet inspection and dynamic access policies, the solution blocks malicious scans, reduces PCI compliance audit time by 50%, and safeguards customer payment data in real time.
Optimized VoIP and Video QoS for Small Business HQ with CISCO851-K9-Ethernet SOHO Security Router
A fast-growing consultancy leverages the CISCO851-K9-Ethernet SOHO Security Router’s built-in Quality of Service (QoS) and application-aware traffic shaping to prioritize VoIP calls and video conferences over general Internet browsing. The result is crystal-clear voice quality, 30% fewer dropped calls, and measurable gains in team productivity during peak usage hours.
Speak To a Hardware Specialist in Your Region
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
Product Comparison Table 
| CISCO851-K9 |  CISCO888-SEC-K9 |  CISCO888GW-GN-A-K9 |  C891F-K9 |  C888SRST-K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention |
| Compliance Standards | FCC, CE | IEEE 802.3, FCC, CE | FCC, CE | FCC, CE | FCC, CE, UL |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Device Type | Router | Router | Gateway | Router | Router |
| Ethernet Technology | 10/100 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100 |
| Features | VPN / IPv6 Compatible / Firewall | VPN, Firewall, QoS, NAT, Routing | VPN, VLAN, QoS, Intrusion Prevention | VPN, Firewall, IPv6 Compatible | VPN / VoIP / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 256 MB | 256 MB | 128 MB |
| Form Factor | Desktop | Rack-mount / Desktop | Rack-mount | Desktop | Rack-mount |
| High Availability Support | Not Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice / Video |
| Interface Ports | RJ-45 | RJ-45, SFP | RJ-45, SFP | RJ-45 | RJ-45 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 8 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Network Protocols | IP, IPv6, QoS | TCP/IP, UDP, ICMP, SNMP | IPv4, IPv6, VPN | TCP/IP, IPv4, IPv6 | IP, PPP, Frame Relay, MLPPP |
| Power | 22.8 Watt | 65 Watt | 75 Watt | 65 Watt | 45W |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply with Redundancy | AC Power Supply / Redundant | AC Power Supply |
| Product Name | Cisco 851 Wireless Services Router | CISCO888-SEC-K9 | CISCO888GW-GN-A-K9 | Cisco C891F-K9 Integrated Services Router | Cisco C888SRST-K9 |
| Product Type | Enterprise Router | Secure Router | Gateway | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP | SSH, Telnet, SNMP | HTTP, HTTPS, SNMP | SSH, Telnet, SNMP | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Stacking Capability | No | No | No | No | No |
| Throughput Capacity | 0.025 Gbps | 1 Gbps | 1 Gbps | 0.5 Gbps | 0.15 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise / Small Business | Business |
| VPN Support | IPSec / SSL VPN / N/A | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN / N/A |
| WAN Configuration | WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 1 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Wireless Support | Yes | No | No | No | No |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
S
Sophia Lewis
5
Simple and reliable SOHO router. Easy setup and stable performance for small business networks.
E
Ethan Davis
5
Cisco 851-K9 offers dependable routing with basic security. Perfect for low-traffic office environments.
L
Liam Walker
5
Solid Ethernet performance and minimal maintenance required. A practical choice for small offices.
O
Olivia Taylor
5
Straightforward configuration and reliable uptime. Handles daily business traffic smoothly.
B
Benjamin Roberts
4
Affordable and dependable Cisco router. Meets our basic networking and security needs well.
Questions & Answers
What is the Cisco 851-K9 Ethernet SOHO Security Router?
The Cisco 851-K9 is a compact security router designed for small office and home office environments, offering integrated firewall, VPN, and wired Ethernet connectivity under Cisco IOS.
How many Ethernet ports does the Cisco 851-K9 provide?
The Cisco 851-K9 includes one 10/100 Mbps WAN port and four 10/100 Mbps LAN ports for secure wired connectivity to your network devices.
Does the Cisco 851-K9 support VPN connectivity?
Yes. It supports up to 5 IPSec VPN tunnels and Dynamic Multipoint VPN (DMVPN) for secure remote access and site-to-site encryption.
What security features are built into the Cisco 851-K9?
The router features Cisco IOS firewall (stateful packet inspection), intrusion prevention system (IPS), Network Address Translation (NAT), and access control lists (ACLs) for comprehensive perimeter defense.
What is the maximum throughput of the Cisco 851-K9?
The device delivers up to 25–30 Mbps of real-world firewall and VPN throughput, ideal for small office internet speeds and remote access needs.
How is the Cisco 851-K9 managed and configured?
Management is via Cisco IOS CLI, web-based Device Manager GUI, and SNMP for centralized monitoring and configuration flexibility.
Is wireless functionality included in the Cisco 851-K9?
No. The Cisco 851-K9 is a wired-only router; for integrated Wi-Fi you would choose models in the Cisco 800W series.
What routing protocols does the Cisco 851-K9 support?
It supports static routing, RIP v1/v2, OSPF, EIGRP stub, and policy-based routing for dynamic path selection and network redundancy.
How much memory and storage does the Cisco 851-K9 have?
The router ships with 16 MB of DRAM and 8 MB of flash memory, supporting IOS feature sets and configuration storage.
Does the Cisco 851-K9 support Quality of Service (QoS)?
Yes. It provides class-based QoS, traffic shaping, policing, and low-latency queuing to prioritize voice and critical applications.
What power options are available for the Cisco 851-K9?
The router uses an external 12V DC power adapter, consumes approximately 10W, and does not support PoE.
What warranty and support options are available?
Cisco 851-K9 includes a 12-month limited hardware warranty. Cisco SMARTnet® service can be added for 24x7 support, software updates, and advanced replacement.
How do I perform a factory reset on the Cisco 851-K9?
Press and hold the MODE button for 10 seconds while powering up; the router’s LED will blink, indicating it has returned to factory Cisco IOS defaults.
Can the Cisco 851-K9 handle voice traffic?
Yes. With integrated QoS and low-latency queuing, it can prioritize SIP, H.323, and other VoIP protocols for clear voice calls.
Is the Cisco 851-K9 suitable for telecommuters?
Absolutely. Its compact form factor, secure VPN support, and reliable firewall make it ideal for remote workers needing enterprise-grade connectivity.