I recently picked up a Copam PC-301 XT based desktop which has the backplane style motherboard
This card (along with a full length CGA and half length FDD controller) came installed.
The battery had leaked and I removed it then performed a basic clean (but not complete yet)

I'd like to find some schematics or jumper information on this board as it looks like it has RAM, Serial and some sort of RTC functionality.