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| Click here to select a new forum. | | Microtech SCSI to USB adapter help | Posted by: pcamen on 2019-04-30 13:32:18
I've got a couple of the Microtech SCSI to USB adapters.
- USB-SCSI-HD50
- USB-SCSI-DB25
From this thread and this thread on those devices (very and somewhat old threads, so I won't try and resurrect them) they should work on OS X with the caveats mentioned in one of the threads.
But mine does nothing. I'm not sure why it would be an issue, but is it possible I have to many converters?
1. SCSI HD with SDA connector
2. SCA to IDC50 board with power input, being driven by a power supply to the molex connector
3. IDC50 to DB25 converter sold by Inertial Computing
4. DB25 to DB25 SCSI cable
5. DB25 to HD50 converter
6. HD50 Microtech model above plugged into a USB port (I hadn't located my DB25 version when I tried this).
Yea, that's a lot of adapters.
I tried it plugged into a USB hub and then directly to my Macbook USB-C port with a USB-C to USB3 adapter for a modern Macbook Pro Touchbar.
I also tried it with an older 2014 or so MBP with USB-3 ports. Same business.
With just power applied to the drive / SCA to IDC50 board, the drive spins up. When I add the Microtech to that, it doesn't spin up.
Anyone have experience with these? @tmtomh, @Dandu, from the two threads above, it sounds like you guys have used these before. Any tips?
| Posted by: balrog on 2019-04-30 21:26:26
I’ve recently used one of these with a Linux VM on a modern Mac to image an 80GB SCSI hard disk. Yes it took a while.
Key takeaway: the adapter is not USB powered, but rather is powered by SCSI termination power. I used a Jaz drive to inject termination power, but another method could be used as well.
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