Not so sure about Mark II versions since power storage and generation never seems to be a problem for me… but I do like the idea of a substandard tier. Not sure about their exact designation as ‘counterfeit’ though.
[spoiler]Given that the US never developed an industrial trade agreement with The Far East in this universe I’d guess that easier enforcement of copyright law probably kept actual counterfeiting lower than in our universe.
Alternate History aside: perhaps Mexico/SA developed into our cheap manufacture in the 90s instead of China… Japan likely remained a high end electronics and robotics developer until I’d guess that the rest of the United Socialist East finally got their revenge for WWII, sparking a large migration/refugee population to the US (hence the prevalence of Japanese cultural items in New England.)
[/spoiler]HOWEVER… Shadowrun style cybernetic ‘chop shops’ might have totally been a thing. Second-hand cybernetics are already referenced in the cyberjunkie background and a good percentage of most player’s cybernetics are technically ‘pre-owned’. Sure you cleaned most of the gunk out, but they’ll never have that off-the-shelf fit and tailoring of a professionally installed unit.