Photograph of Apple IIgs
Benoît Prieur / Wikimedia Commons / CC0

16-bit Apple II. Ensoniq, VidHD, and Fast-class accelerators are the usual upgrades.

Published open-source PCB projects

No editor-ready open-source PCB projects are published for this system yet. Other catalogued projects stay in the reference table below.

Other catalogued projects

Mod License Notes
VidHD Proprietary HDMI video card for IIe and IIgs. Closed commercial hardware.
IIgs accelerators / RAM Proprietary TransWarp-class and modern RAM cards. Mostly commercial.

Open-source rows can be shallow-cloned into the git bucket. Generated board renders belong on the artifact CDN, not in git. See the catalog wiki note.