price: 30 GBP platforms: C16,Plus4
convert the unreliable 8501 processor fitted to the Commodore 16 and Plus 4 to the more reliable, cheaper and widely available 6510, as fitted to the Commodore 64.
The newer version of this board plugs into the Plus 4 without soldering. The Plus 4 version is currently available complete with 6510 and kernel ROM.
PAL system only. Certain things may not work such as stopping the tape and turbo disk loaders.