external SCSI controller and hard disk drive with 10 MB (9710H) or 20 MB (9720H)
SCSI controller connects to the side expansion port
the 5¼" hard disk resides in a separate upright housing which is connected to the controller via a DB37 cable
an additional DB37 port at the hard disk case allows daisy-chaining other drives
uses an ST-506 hard disk drive with a Xebec S1410 SASI/SCSI to ST-506 adaptor card
45W power supply in the hard disk housing
side expansion port is not passed through
does not autoboot
does not support the RDB standard
does not even use a mountlist entry, but parameter files on the boot floppy and the hard disk
badly written driver software, uses busy waits
Notes
the 9700H series drive is a generic one which is used for other products for IBM PC, Atari etc., which are supplied with specific SASI/SCSI controllers