3Com 3C17222 SuperStack 3 Switch 4400 Switch / Carrier Ethernet Line Card

The 3Com 3C17222 is a 1-port 100Base-FX expansion module for the 3Com SuperStack 3 Switch 4400 family, including the Switch 4400, Switch 4400 FX and Switch 4400 PWR. It fits into the switch’s rear expansion slot and adds a single 100Base-FX fibre port, letting a 4400 unit reach a fibre backbone or uplink switch over distances that exceed copper cabling limits.

This is a common upgrade for sites running a SuperStack 3 Switch 4400 as a wiring-closet access switch that need a fibre uplink back to the core rather than adding a media converter. The module installs without tools into the existing expansion bay and does not require reconfiguration of the switch beyond enabling the port. 3Com published a family data sheet covering the full range of 4400 expansion modules, of which the 3C17222 is the fibre-uplink option, alongside copper Gigabit and cascade/stacking modules for the same slot.

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.