* Can be optionally fitted with Amphenol connectors (instead of Edge connectors, as far as known, this option was never used for the 464). The screw-holes have contacts for optional shielding-plate (this option was used in german Schneider models).
[[File:CPC464 Z70374 Grimware.jpg|200px120px|left]]
* '''Board: PT NO Z70374, MC0044A'''
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[[File:CPC464 Z70374 MC0044B cpcmania.jpg|200px120px|left]]
* '''Board: PT NO Z70374, MC0044B'''
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[[File:CPC464 Z70375 Tomdalby.jpg|200px120px|left]]
* '''Board: PT NO Z70375, MC0044D'''
* Mostly same as Z70374. The 3 resistors in upper-right are arranged differently, different cassette connector installed, tinned GND fields.