SCSI Controller which connects to the side expansion slot of the A500. As well as an internal 50pin connector, it has also an external DB25 SCSI connector, on/off switch and supports an external power supply. Unusually for most A500 expansions, it supports additional memory in the form of 1 x 72pin SIMM slot. This probably supports a maximum of 8MB of RAM.
Thanks to Adrian Glaubitz
