You are a lucy owner of a CGA video card 😀

But I can't fit in any video cable in it, are there some CGA to VGA adapters ?

Such devices do exist and don't cost as much as you'd think (they used to be silly); http://www.ebay.co.uk/itm/NEW-Arcede-Game-Con … E-/281772590673

Though I am unsure how well they work.

Yes, it needs a 8bit isa slot, all XT class computers and almost all 286 and 386 class computers have it, and even some 486 motherboards, but this card is only useful for XT and maybe 286 class computers, and no VGA, but you can connect a NTSC aware SCART RGB, or composite TV or monitor to it.

I do have a 386 computer in my other home (from where I'm salvaging all this beautiful vintage hardware for my experiments), I'll check if it has a compatible ISA slot, the Olivetti M4 434 S here doesn't, it has only ISA slots, but none of them fits this card (also I can't fit it in physically due to its lenght).

This Olivetti has a 14-pin VGA out, which is harassing me, I wish I could provide it a graphics card 😒

The overhang is weird. If the card fits in a 16-Bit slot it will work, but the designers didn't seem to be aware of that (maybe 16-Bit slots weren't around yet, they wouldn't have been common when it was designed) or didn't see it necessary, so the card overhangs behind the slot where it would usually be an open space.

Still, it's worth knowing for future reference - 8-Bit cards work in 16-Bit slots just fine. Sometimes, you can even use 16-Bit cards in an 8-Bit slot, but the latter is just a whole world of confusion and it's probably best not to think about that unless you ever absolutely have to.

HighTreason wrote:

The overhang is weird. If the card fits in a 16-Bit slot it will work, but the designers didn't seem to be aware of that (maybe 16-Bit slots weren't around yet, they wouldn't have been common when it was designed) or didn't see it necessary, so the card overhangs behind the slot where it would usually be an open space.

Seen overhang even bigger. Usually used with XT machines, where noone counted with 16bit slots. For example IBM CGA card...

HighTreason wrote:

Still, it's worth knowing for future reference - 8-Bit cards work in 16-Bit slots just fine. Sometimes, you can even use 16-Bit cards in an 8-Bit slot, but the latter is just a whole world of confusion and it's probably best not to think about that unless you ever absolutely have to.

Most of them work, but some not. Few cards didnt booted on mine testing Athlon XP 2200+, but worked with 486 board....

Are there some adapters so I can fit it in one of my boards to test it ?
Or which board could I buy to try that graphics card out ?