Router 1841
Overview
Product sourcing insights & recommendations
The Cisco 1841 router is a legacy Integrated Services Router (ISR) that has transitioned from a mainstream enterprise workhorse to a niche product primarily used for educational labs, legacy system maintenance, and budget-conscious networking.
1. Market Lifecycle & Trends
The Cisco 1841 is currently in its End-of-Life (EoS) and End-of-Service (EoS) phase. ParkplacetechnologiesRelutech Cisco officially ended sale of the product in 2011 and support in 2016, with some security patches continuing until 2018. Router-SwitchAlibaba
* Replacement Trends: In active production, it is being phased out in favor of the Cisco ISR 1100 or ISR 4000 series. AlibabaCisco
* Steady Secondary Demand: Despite its age, there is a consistent market for refurbished and used units, particularly on B2B platforms like Alibaba and consumer sites like eBay. EbayAlibaba
2. Product Insights & Use Cases
* CCNA/CCNP Certification: Its most significant modern use is in physical training labs. It supports IOS 15.1, which is sufficient for learning core routing protocols (OSPF, BGP, NAT) and CLI management. CertificationkitsAlibaba
* Legacy Infrastructure: It remains valuable for businesses needing physical Serial or T1/E1 interfaces that modern SFP-based routers no longer include. Alibaba
* Price Point: Refurbished base models typically range from $40 to $85, while advanced security bundles (256MB DRAM/64MB Flash) can fetch $150–$300 depending on the configuration and modules. CertificationkitsAlibaba
3. Critical Performance Bottlenecks
As a 20-year-old design, the 1841 faces severe limitations in modern environments:
* Throughput: Restricted to 10/100 Fast Ethernet; routed throughput peaks at approximately 85 Mbps. Alibaba
* Encryption: VPN throughput is limited to 45 Mbps in software, increasing to 120 Mbps with a dedicated AIM-VPN module, but lacks support for modern TLS 1.2+ protocols. CiscoAlibaba
* Efficiency: It consumes roughly 25W at idle, significantly higher than modern equivalents that offer vastly superior performance. Alibaba
I have identified current B2B listings for the 1841 and its successors in the file below.
Based on these findings, you can continue with:
Cisco 1841 Sec K9 Router
Products · Top picks & verified manufacturers
Used Original 1941-SEC/K9 2-Port Gigabit Wired Router
Shenzhen Starvanq Technology Co., Ltd.🇨🇳CN18 yrs
100% New Original ISR4351/K9 ISR Series Router Integrated Service Wifi Router Ready to Ship
Shenzhen Zone Tek Ltd🇨🇳CN4 yrs
ISR4351-AXV/K9 Router Aggregate Throughput 200 Mbps Integrated Security Feature Gigabit Ethernet Router Device
Beijing BaolianAn Intelligent Technology Co., Ltd.verified🇨🇳CN1 yr
New Original ISR4451-X/K9 4451 Series Enterprise Firewall VPN VoIP Wired Network Router with WEP 1000Mbps QoS-Stock Available
Beijing Xuyang Entrepreneurship Network Technology Co., Ltd.verified🇨🇳CN9 yrs
New Original ISR4221/K9 Ciscos ISR 4221 Integrated Services Router (2GE,2NIM,8G FLASH,4G DRAM,IPB)
Henan Zhouke 'er Technology Co., Ltd.🇨🇳CN3 yrs
CIS CO Enterprise Router ISR4321/K9
Shanghai Shuaiqi Network Technology Co., Ltd.🇨🇳CN7 yrs
Cisco ISR 4321/K9 Enterprise Ethernet Integrated Service Router with VoIP VPN WEP Wi-Fi WAN Port
Beijing Lianmai Tongchuang Technology Co., Ltd.verified🇨🇳CN7 yrs
NEW CISC ISR4461/K9 Wired Home Router with Firewall VPN QoS Support Business Router ISR4461/K9
Original New ISR4221/K9 Cisco ISR 4221 (2GE,2NIM,8G FLASH,4G DRAM,IPB) Network Switch
Beijing Yiwang High Tech Technology Co., Ltd.verified🇨🇳CN3 yrs
Wireless Vpn Gigabit Companies Router With 2x2 802.11ac Router RV160W-C-K9-CN
Original Brand Used Router ISR4321/K9
Beijing Baochuangchaorui Technology Co., Ltd.🇨🇳CN12 yrs
Brand New Original ISR4451-X/K9 4451 Series Firewall VPN, VoIP Wired Network Router
Wireless Vpn Gigabit Companies Router With 2x2 802.11ac Router RV160W-C-K9-CN
ISR4221-SEC/K9 New Original Vpn Router ISR4221-SEC/K9
Original Brand Used Router ISR4321/K9
Brand New Original ISR4451-X/K9 4451 Series Firewall VPN, VoIP Wired Network Router
ISR4321-SEC/K9 100% Original New Router ISR4321 Series Integrated Services Router ISR4321-SEC/K9 With Best Price
Router CIS/CO/1841-RF 1841-T1-V2-RF 1841HSECK9-RF 1841SEC/K9-RF 1905-SEC/K9 1905-SECK9-RF 1921-MS/K9 1921-SEC/K9 1921-SEC/K9X4
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Sources & References
20 sources cited · Verified industry data & reports
Cisco 1841 -> replacing
Reddit · r/Cisco
1100 series ISRs are a good migration option. EOL has not been announced yet, so you have at least 5 to 7 years of active device support, software and security ...
Recommended replacement for 1841
Cisco Community
We are looking to put Cisco routers into some client sites. Was looking at 1841's but they are end of life now I believe, can someone recommend ...
1841 Integrated Services Router - Cisco
Park Place Technologies
The Cisco 1841 End of Life and End of Service Life dates have passed, and this likely isn't the first time you've considered continuity options for your ...
Cisco 1841 Integrated Services Router EOL & EOSL Dates
ReluTech
Cisco. End of Life (EOL): Oct 31, 2011. End of Service Life (EOSL): Oct 31, 2016. Your Hardware Lifecycle. Where does your hardware stand in its lifecycle?
Industrial Routers Market Size, Trends & Forecast to 2033
Persistence Market Research
The global industrial router market to grow from US$ 9.9 Bn in 2026 to US$ 18.6 Bn by 2033, registering a 9.3% CAGR during the 2026–2033 forecast period.
cisco 1841 integrated services router
Service Express
CISCO 1841 INTEGRATED SERVICES ROUTER. EOL Date. EOL = End of Life The OEM no longer markets, sells or updates your equipment after the EOL date.