The GIMIX Ghost 6809 was a superior clone of the SWTPC 6809. It ran at 2MHz, had 15 SS-50 slots and 8 SS-30 slots, as well as space for two built-in floppy drives or hard drives. GIMIX formed in 1976 by two men: Robert Phillips and Richard Don. Robert was the brains behind the technology while Richard really ran the business. They were extremely successful, being mostly known for their peripherals, such as their 32K RAM cards and PROM boards. 

The Ghost 6809 was the development system for many different companies. It commonly had many different terminals connected to it, with allocated sections of RAM dedicated to each user or task.  Most notably it was the computer used by Eugene Jarvis and his team to develop many classic Williams games, such as Robotron and Defender.

It was fully compatible with the SS-50 and SS-30 buses used on the 6800/6809 computers by SWTPC. It had some pretty cool options available for it, such as a graphics board set for displaying high-resolution bit map graphics on a 512X512 screen. Many of the people and companies who used these computers had much more than the typical 56K RAM that most 6809 SS-50 computers had.