* A nnK expansion adds nn Kbytes to the internal 64 Kbytes in the CPC. So the resulting size is nn+64 Kbytes.
* This does in most or all cases also apply on the CPC 6128. Only : only 64 Kbytes of it's internal memory are used (the 2nd half of internal memory is disabled and replaced by the expansion RAM, the resulting size is nn+64, not nn+128Kbytes) (so using a 64K expansion on the CPC6128 would be nonsense).
== Standard Expansions ==
* [[Dk'tronics memory expansion]]