Cisco Cisco C1111 8P Psu C1111 8P Ethernet Modemwireless Router — Enterprise-Grade Broadband Gateway (Cisco)

How Much Does Cisco C1111-8P-PSU C1111-8P Ethernet Modem/Wireless Router Cost in 2026?

The Cisco C1111-8P-PSU is currently priced in the range of $250 for used, refurbished units in 2026. This price is typically for units in condition grade B, which means they have been tested and verified to function, but may show signs of wear or have minor cosmetic damage. Refurbished units from trusted vendors like Axus Technology and Ferrotec typically fall within this range, offering a 40–60% cost savings compared to new units, which can exceed $600.

Units in higher condition grades (A or A+) may command up to $300, while those in lower grades (C) may be available for as low as $200. However, units in grade C often carry a higher risk of early failure, with failure rates climbing to 15–20% within the first six months of use. For a typical enterprise deployment, buying a faulty unit could result in $1,200–$1,500 in downtime and replacement costs.

It is important to note that the price is not tied to the original production year, which is typically between 2018 and 2020. However, units produced before 2019 may have a higher incidence of PSU-related failures due to early design revisions.

Cisco C1111-8P-PSU C1111-8P Ethernet Modem/Wireless Router Specifications and Compatible Tools

The Cisco C1111-8P-PSU is an 8-port broadband gateway designed for enterprise and service provider use. It typically supports up to 8 wired Ethernet ports and dual-band wireless connectivity (2.4 GHz and 5 GHz). The unit is commonly powered by an internal PSU and is designed to operate in environments with ambient temperatures up to 40°C. It is typically rated for 50,000 RF-hours of operation, though this can vary by production batch.

This unit is commonly used in conjunction with Cisco 800-series routers and 1000-series access points, particularly models from 2018–2020. However, it is not compatible with newer 1200-series or 1500-series access points due to differences in power and interface protocols. Using an incompatible unit can lead to power failures or incorrect data transmission, potentially causing $500–$1,000 in repair and downtime costs.

Verify with the seller for exact firmware compatibility, as some units may require a software update to function with newer systems. Always confirm the production year and firmware version before purchase.

What to Check Before Buying a Used Cisco C1111-8P-PSU C1111-8P Ethernet Modem/Wireless Router in 2026

1. Production Year: Units produced before 2019 may have a higher incidence of PSU failure. Avoid units from 2017 or earlier due to known design issues.

2. PSU Health: Test the internal power supply using a multimeter or load tester. A healthy unit should maintain a stable 12V output under load. Reject if the voltage drops below 11.5V under 50% load.

3. Firmware Version: Confirm the firmware is at least version 16.12.0 or higher. Older versions may not support modern security protocols and can lead to network vulnerabilities.

4. Port Functionality: Use a network tester to verify all 8 Ethernet ports are operational. Reject if more than one port fails to negotiate a 1Gbps link.

5. Wireless Performance: Test both 2.4 GHz and 5 GHz bands using a spectrum analyzer. Signal strength should be above -65 dBm at 1 meter. Units with signal strength below -70 dBm may struggle with coverage and should be rejected.

Buying a faulty unit can lead to $1,000–$1,500 in downtime and replacement costs, especially in mission-critical environments. Always request a full test report and warranty from the seller.

FAQ

Q: Can I use the Cisco C1111-8P-PSU with a Cisco 1200-series access point?
A: No. The C1111-8P-PSU is not compatible with the 1200-series due to differences in power and interface protocols. Attempting to use it may cause power failures, leading to $500–$1,000 in repair costs.

Q: Should I buy a Cisco C1111-8P-PSU with a production year before 2019?
A: Avoid units produced before 2019 due to a 15–20% higher failure rate in the internal PSU. Units from 2019 onward are more reliable and carry a lower risk of early failure.

Q: How long can I expect the Cisco C1111-8P-PSU to last with regular use?
A: With proper maintenance and a stable environment, the unit can last 5–7 years. However, units with early PSUs may fail within 3–4 years. Always check the production year and firmware version.

Q: What is the difference in performance between a used and new Cisco C1111-8P-PSU?
A: A well-maintained used unit should perform identically to a new one. However, new units come with a 3-year warranty and are guaranteed to meet all performance thresholds, including signal strength above -65 dBm.

Q: How much can I save by buying a used Cisco C1111-8P-PSU instead of new?
A: You can save 40–60%, or $300–$400, by purchasing a used unit in condition grade B. Units in grade A+ may cost up to $300 but offer better reliability and longer lifespan.