Changes

Internal 512K 512 KB RAM expansion for CPC6128 from german magazine '''c't, issue 10/1987'''. The DIY project name is '''CPC 6512'''.

One half (256K) of the total (512K) expansion memory is said to can be accessible accessed as Video RAM (with normal expansions, only 64K 64 KB are accessible as Video RAM). So, the c't expansion might be incompatible with [[Standard Memory Expansions]], or it might be a backwards-compatible variant with additional features.