This new multi purpose board:
Is a compliment to USIfAC II board that offers amazing new features:
-512K RAM Expansion (default mode, should work with other boards too,like M4, DDI interfaces etc.)
-32X Rom board mode (supports both lower and upper roms)
-256K Ram expansion + 2X Rom board mode (supports both lower and upper roms)
It can also act a "mini" MX4 board, as it offers a 50pin female connector + edge connector to plug USIfAC II and other boards.
You can check these small presentation videos:
Board would be especially useful for Amstrad CPC 464, as it will, not only allow to run games that require 128k Ram, but also, using the special "Dual mode", you will have amsdos/parados rom (for fast access of dsk image files, like with CPC6128) or CPC6128 firmware+Basic (to use all new features and conveniences of CPC6128 BASIC 1.1), along with 256K Memory expansion!
Anything you will need can be found here, including a small user guide too
(readme.pdf). Use "RAM-ROM_old_usifac.zip", if you have a USIfAC II
with older than v6 firmware.
Anyone interested, please contact at: ikonsgr745@hotmail.com