There was also the Reactive / ARRAID AEM-1 SMD Drive Emulation System. http://www.reactivedata.com/Products/Legacy_Disk_and_Tape_Emulators/Disk_Drive_Emulation_Systems/AEM-1/index.php No idea if you could actually find one of those. There are a couple of the AEM-5C Diablo emulators on eBay. Only asking in the neighborhood of $1500 for those.