Atari 8-bit computers, including models like the 400, 800, and XE series, were produced in the 1970s and 1980s. While many enthusiasts still use them for gaming and expansions today, newer models face stability issues due to cost-cutting in the design, particularly the lack of a ground plane, which makes them more prone to interference. This interference can affect screen quality, especially on Atari XE models. Specialized sockets have been developed to add a ground plane and address these stability problems.

This version has extra soldering points:

• RESET - for Ultimate1MB
• RW - for Ultimate1MB
• HALT - for Ultimate1MB
• IRQ - for VBXE
• A4, A5, A6, A7 - for Sound Cards like PokeyMax or Simple Stereo V4

The construction of the project is straightforward. A 100nF capacitor is connected to the Vcc pin. The PCB has four layers, and the recommended PCB thickness is 0.8mm.