On 14 mar, 14:08, Drew <goggled...@gmail.com> wrote: > Hi, > > I recently received a Apple II SCSI Rev C card and decided it was time > to try out a Apple CD300e Plus drive i have had in storage for years. HS.FST is an interesting feature for High Sierra disks. For Mac disks, the HFS FST is mandatory. The 300e plus is SCSI-2 compliant. Will that work on a IIgs with a Rev C card? antoine