3Com 3C17220 SuperStack 3 Switch 4400 Switch / Carrier Ethernet Line Card

The 3Com 3C17220 is a 1-port 1000Base-T Gigabit Ethernet expansion module for the 3Com SuperStack 3 Switch 4400 family, including the Switch 4400, Switch 4400 FX, Switch 4400 PWR and Switch 4400 SE. It fits into the switch’s rear expansion slot and adds a single copper Gigabit uplink port over standard Category 5e/6 cabling, giving a 4400 access switch a fast, resilient path back to the core network without the distance limitations that come with running fibre in every wiring closet.

This is a common upgrade for sites running SuperStack 3 Switch 4400 units as workgroup access switches, where the downlink ports stay at 10/100 but the uplink to the backbone needs more headroom. The module installs without tools into the existing expansion bay and is part of the same 4400 family expansion range as the fibre and stacking modules, so a site can choose copper Gigabit, fibre, or cascade stacking for the same slot depending on what a given switch needs.

It’s a good match for organisations maintaining an existing 4400 estate who need matching hardware for expansion, redundancy or like-for-like replacement. Tech-Star (UK-based, shipped worldwide) checks every module before it ships. Get in touch to confirm compatibility with your specific 4400 model.