Capacity
- 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 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+128) (so using a 64K expansion on the CPC6128 would be nonsense).