A PCI video card, with two RAM chips and two unpopulated RAM pads https://digipres.club/system/media_attachments/files/112/046/689/096/723/448/original/71bb7cdcc76f0925.jpeg
And our video card is a STB Systems Horizon+ PCI, built around a Cirrus Logic CL-GD5430.This is a 2D accelerator with an entire megabyte of VRAM.