[[Image:Dktronics vision 1.jpg|thumb|343px|right|256K Silicon Disc and 256K expansion(used without the additional ROM cartridge here)]]
The '''Memory Expansion''' and '''Silicon Disc''' from [[Dk'tronics]] are both contain expansion RAM, the latter one expansions. The Silicon Disc additionally contains comes with a ROMwhich contains RAM-Disc functions.
== Description ==