United States
| Name: |
C881SRST-K9 |
| Description: | Cisco SRST881 ENet FXS - FXO Sec Router |
| Rating: |
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| GTIN: | 882658171482  |
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
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Same-day Shipping
Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
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.
Service Boundaries & Exclusions
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.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
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.
Refund or restock, your call.
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.
TRUSTED, TRIED, PROVEN
C881SRST-K9 Overview
C881SRST-K9 is a fixed enterprise router engineered for branch offices that demand secure, integrated services and reliable voice capabilities even in adverse network conditions. Designed with a robust architecture, it supports multiple routing protocols and integrated VPN features, ensuring secure data and voice transmission across WAN and LAN interfaces with high throughput and redundancy for mission-critical use cases.
C881SRST-K9 combines versatile power options with a streamlined front-panel design that facilitates rapid deployment in diverse environments. With integrated services such as advanced firewall protection, SRST for voice survivability, and modular capabilities for future expansion, it meets the performance and connectivity requirements of enterprise and branch office infrastructures.
What is the price of C881SRST-K9?
Pricing for C881SRST-K9 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for C881SRST-K9.
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C881SRST-K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec / DMVPN / FlexVPN |
| Power Source | AC Power Supply |
| Routing Protocols | OSPF / EIGRP / RIP / BGP / Static Routing |
| Broadband | DSL |
| Architecture | Fixed |
| WAN Configuration | WAN |
| WAN Ports | 1 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IPv4, IPv6 |
| Remote Management | SSH / Telnet / SNMP |
| Compliance Standards | FCC, CE, RoHS |
| Wireless Support | No |
| Speed/Capacity | 25 Mbps |
| Firewall Features | Yes |
| Features | VPN, NAT, Firewall, QoS, SRST, Voice, Integrated Security |
| Use Case | Enterprise, Branch Office |
| Management | Managed |
| Form Factor | Desktop |
| Integrated Services | Voice, Secure WAN, Unified Communications |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 0.025 Gbps |
| 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 | 20W |
| Device Type | Router |
| Product Name | Cisco 881SRST-K9 Integrated Services Router |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
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 | Modular | Modular | Modular |
| Broadband | DSL | N/A | N/A | N/A | Fiber Optic |
| 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, Malware Protection |
| Compliance Standards | FCC, CE, RoHS | FCC, CE | FCC / CE / RoHS | IEEE 802.3 / IEEE 802.1Q | IEEE 802.3, IEEE 802.1X |
| Connectivity Type | Wired | Wired | Wired | Wired / Ethernet | Wired |
| Depth | N/A | 18.3 inches | 12 | 19.5 inches | 18 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | CISPR22, FCC Part 15 | N/A | FCC / CE | EN 55032, EN 55024 |
| Ethernet Technology | 10/100 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | N/A | NIM / EHWIC | NIM / SFP+ | NIM / SFP+ | NIM, SFP+ |
| Features | VPN, NAT, Firewall, QoS, SRST, Voice, Integrated Security | Mesh / VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / Firewall / Intrusion Prevention / IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN, Firewall, MPLS, QoS, Redundancy |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 512 MB | 512 MB | 512 MB |
| Form Factor | Desktop | Rack-mount / Desktop | Rack-mount | Rack-mount | Rack-mount |
| Height | N/A | 1.75 inches | 1.75 | 4.5 inches | 4 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Secure WAN, Unified Communications | Voice / Video / WAN Optimization | VPN / WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 / SFP | RJ-45 / SFP+ | RJ-45 / SFP | RJ-45, SFP, SFP+ |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 8 LAN Ports | 8 LAN Ports | 8 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 512 MB | 4 GB | 4 GB | 4 GB |
| Modular Slots Available | N/A | 2 Slots | 2 Slots | 3+ Slots | 3+ Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6 | IPv4 / IPv6 | IPv4 / IPv6 | IPv4, IPv6 |
| Power | 20W | 54 W | 150W | 350 Watt | 350 Watt |
| Power Source | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / Redundant | Redundant AC Power Supply |
| Product Name | Cisco 881SRST-K9 Integrated Services Router | Cisco ISR4321-AXV/K9 | CR8PM8BASAC1 Enterprise Router | AR2220E Enterprise Modular Router | S103K9ZU-12233SB Enterprise Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH / Telnet / SNMP | SSH, Telnet, SNMP | Web GUI / CLI / SNMP | SSH / Telnet / SNMP | HTTP, HTTPS, SSH, SNMP |
| Routing Protocols | OSPF / EIGRP / RIP / BGP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | N/A | RoHS Compliant | N/A | UL / CE | CE, FCC |
| Speed/Capacity | 25 Mbps | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | Yes | Yes | Yes | Yes |
| Telecom | N/A | TIA/EIA | N/A | TIA/EIA | ITU, ETSI |
| Throughput Capacity | 0.025 Gbps | 200 Mbps | 2 Gbps | 2 Gbps | 10 Gbps |
| Use Case | Enterprise, Branch Office | Enterprise / Branch | Enterprise / Industrial | Enterprise | Enterprise |
| VPN Support | IPSec / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN / GRE | IPSec / SSL VPN |
| WAN Configuration | WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 1 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | N/A | 13.2 lbs | 15 lbs | 35 lbs | 25 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | 17.5 inches | 17 | 17.5 inches | 17 inches |
| Wireless Support | No | No | No | No | No |
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