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A comment on BlueSCSI – Open, Low Cost, DIY SCSI to SD Device – TinkerDifferent. Parent comment

Re:BlueSCSI – Open, Low Cost, DIY SCSI to SD Device – Tinker... by rvense on Saturday December 11, 2021 @01:48PM (#29523223)
AFAIK no old Mac will do 5MB/s on its built-in, external SCSI.
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Re:BlueSCSI – Open, Low Cost, DIY SCSI to SD Device – Tinker... by Maursault on Saturday December 11, 2021 @01:56PM (#29523286)
That's the maximum bandwidth for narrow SCSI-1, used in anything from Mac Plus to 68030 machines. The external SCSI, a separate bus, is always SCSI-1. Sometimes the internal SCSI is SCSI-2 (some 68040 & PPC Macs). WGS95 had a wide SCSI card (so had 3 separate SCSI busses, narrow, fast, and fast wide).

Reportedly, with any of the SCSI emulators, it is not difficult to saturate a narrow SCSI bus with a 68030 Mac, so... it will do exactly 5MB/s on narrow SCSI in these cases.

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