The Commodore A4000T is in a custom Amiga case. The Amiga Technologies version is in a PC case, complete with 'Turbo' button.
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Not quite true, both use an identical standard Enlight AT case, the Commodore had a different front to the AT machines. There is even a promo picture available somewhere that shows a C= 4000T in the exact same case as the AT versions, but with a C= logo.
