I've got an Apple Rev. C SCSI board driving a Bernoulli box and a 20 MB Vulcan in my GS (ROM 1, 4 MB, PC Transporter, 5.25" disk controller). Everybody seems to get along OK. My only complaint is that the SCSI only sees one of the two Bernoulli drives, but that seems to be a limit of the software. Chuck Meins, Jr. meins@ll.mit.edu