Supra, Inc., previously known as Supra Corporation, were best known as manufacturers of modems for personal computers, but also produced a range of hardware for the Amiga and Atari ST, including hard drives, SCSI controllers, memory boards, and processor accelerators.
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The company was founded by John Wiley and Alan Ackerman as Microbits Peripheral Products (MPP), a provider of interface products for the Atari 8-bit family.The two of them were friends in high school when they developed various computer hardware for the school computers, and were best known for a 300 baud modem and a printer interface. The company was successful for some time, but a number of factors led to its bankruptcy around 1986, and its reformation as Supra, initially selling hard drives for the Atari ST. Originally from Albany, Oregon, they later moved to Vancouver, Washington.
In 1991 the company arranged a deal with Rockwell International to use their new V.32bix 14,400 bit/s modem chips with an exclusivity arrangement. Their SupraFAXModem 14400 was sold at prices points about half that of the slower 9600 V.32 models of the same era, and its introduction led to a rapid downward spiral in modem pricing. Within years the boom and bust in the business led to Supra being purchased by Diamond Multimedia in 1995.