*[https://www.centpourcent.net/ Cent Pour Cent] TotO's MX4 hardware expansions
*[http://www.tmtlogic.com/ TMTLogic] CPC and MSX hardware expansions
*[http://retroworkbench.blogspot.com/ ikonsgr 80's Home Micros WorkBench] CPC, Spectrum, Amiga hardware projects
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