Amstrad CPC6128 512K RAM Expansion Card

This board uses only standard 74 Series logic ICs and a single SRAM chip. There are no devices which need programming and all parts are in through-hole packages to make for a board which is easily assembled even by a beginner.This card supports all 6128, 464 Plus and 6128 Plus machines but is not suitable for the older 464 and 664 computers.

For full information see the project wikipages on GitHub.