 Despite the subsequent demise of Escom, production was continued by QuikPak in North America into at least 1997.The A4000T was the only Amiga ever to have both SCSI and IDE interfaces built-in on the motherboard.Having driver software for both interfaces in the 512 KB ROM meant that some other parts of AmigaOS had to be moved from the ROM, and thus the A4000T is the only machine to require the file "codice_1" to be stored on disk.