@EFFD.ADF "IBM VGA Adapter" (file date of 1988-11-04, size 102 bytes.)
Searching ALETs and RETAIN tips gives no hits. Looking at possible systems shows no VGA Adapter /A. Yet here it is.
VGA Adapter /A Front P/N 33F4473, FRU 15F7932 (IBM/Epson)
U1,6,7,10,12,14,15,18 NEC D41464L-10 64Kx4 DRAM, 256 KB total. Looks similar to the 8580 VGA memory.
VGA Adapter /A, Back
AdapterID 0effdh "IBM VGA Adapter" Sections
AdapterName "IBM VGA Adapter"
And that is it. The ADF does not fill me up with confidence. I see no EPROM or Flash on the card, so my SWAG is this card sits on standard VGA addresses. pos bit 0 is the CEN, so this ADF is sordid "so what?"
An astute observer could probably grok supported I/O and things from the populated traces on the edge connector. Is this an AVE card? I don't see any 16-bit BVE cards...