HP ProCurve 9300
J8178A
24-Ports EP 100Base-FX LAN Expansion Module
Used with the following: ProCurve Routing Switch 9315m (J4874A); ProCurve Routing Switch 9308m (J4138A); ProCurve Routing Switch 9304m (J4139A)
Very nice used condition.
UNTESTED- being sold as-is.