4 MB DRAM internal memory expansion for CPC.
* It's first 512Kbyte 512 Kbyte are compatible with external memory expansions (Dk'tronics, Inicron RAM-BOX), using port #7Fxx (see [[Standard Memory Expansions]]).* Additional 3It's first 2 MB are compatible to RAM7's 2 MB expansion.5MBbyte * The whole 4 MB can be used trough ports #78xx to #7Exx 7Fxx (see [http://8bit.yarek.pl/upgrade/cpc.cpc4mb/index.html CPC4MB] Page, for futher details).
== Software ==