That's an Asante FriendlyNet II.

I have the transceiver that goes with it in my hands as we speak. The transceiver, for some odd reason, has a second LED in addition to activity - it has a "Link Integrity" indicator. God knows why.

Can't tell you if it's oddball or rare, I've only got the transceiver and never met the card itself (transceiver was on the back of a Power Mac with AAUI!) but it should be fine to work with.