[[Image:Silicon disc front2.jpg|thumb|A closeup of 6128 version]]
A 256Kb RAM expansion for the CPC. This combined with the DkTronics 256Kb memory expansion (advertised as such) would give the CPC an additional 512Kb RAM in the case of a 464/664 or an additional 448Kb RAM in the case of the 6128 - ie: in all cases a maximum of 576Kb RAM.
== Silicon Disc Versions ==
* "dk'tronics Silicon Disc" cartridge
* "dk'tronics Silicon Disc Operation System" cartridge
A 256Kb The difference here is probably, that the first cartridge contains plain RAM expansion , the second additionally a BIOS ROM with RSX commands for accessing the CPCRAM disc. This combined with == Other Versions == Dk'tronics also made the DkTronics 256Kb "[[Dk'tronics memory expansion (advertised as such) would give ]]". Not sure if/how it differs from the CPC an additional 512Kb RAM in "Silicon Disc". Maybe it's just renamed and contains exactly the case of a 464/664 same hardware... or an additional 448Kb RAM in the case maybe one of the 6128 devices is battery- ie: in all cases a maximum of 576Kb RAMbacked, and the other isn't...?
[[Category:Hardware]] [[Category:Peripherals]] [[Category:Memory expansions]]