The Emulex Persyst Colour 2 Vintage Graphics Card

I take a look at the Emulex Persyst Colour 2 card, try to identify what it is and what its superpower is. It's obviously a colour graphics card for a PC/XT, but what exactly?

Then I take a look at my ST-225 Seagate Hard Drive, to try and figure out what has gone wrong with it. I manage to narrow the problem down, but what exactly is wrong?

Images:

Persyst EMS Board - Bub - CC-By-SA-3.0

Видео The Emulex Persyst Colour 2 Vintage Graphics Card канала PCRetroTech