Excuse me, I meant to say the only "affordable" modular units. Of courses there is Theta and Digisat, but sky high prices for either and Theta's upgrade history is spotty in terms of staying current.
Anthem has sold many processors claiming to be upgradeable but AFAIK they rarely follow up in comparison to releasing brand new processors.
Anthem has sold many processors claiming to be upgradeable but AFAIK they rarely follow up in comparison to releasing brand new processors.