|''PCB Top'' ||''PCB Bottom'' || Description
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|[[File:Terje 464CPC464Plus_MC0122B_2700-MC0122B016P-63_PCB_Top.jpg|141px]] || [[File:CPC464Plus_MC0122B_2700-016P-3_PCB_Bottom.jpg|141px]] || '''Board: 2700-016P-3, MC0122B, Copyright 1990'''<br>IC16 is 74HCT02 with two extra resistors between pins 2+14 and 3+4<br>extra diodes near R71-R75 (below right edge of expansion port)<br>([[Media:Terje 464-MC0122B-6.jpg|other picture]])
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|[[File:Terje 464-MC0122C-7 unrotated.jpg|141px]] || || '''Board: 2700-016P-3, MC0122C, Copyright 1990'''<br>IC16 is 74LS27 without extra resistors<br>other extra diodes near R71-R75, and R73 is not installed