68 pin SCSI in Amiga

[Zac67]

It might be easier to switch to 68pin cabling incl. terminators and use adaptors for the 50pin devices which should be still be available, esp. when you're planning to add more than one wide device.

[Zac67]

Wide cable terminators are usually no problem to obtain and once the bus is terminated in whole there's no need for 'half-terminators' any more. You can also use built-in terminators on the end drives instead of cable terminators. OTOH most wide drives run fine on a narrow bus, there are few refusing to (esp. IBMs).

[Zac67]

Those are simple SCA adaptors, so any drive requiring full termination won't work.
When you can put the SCA drive at the chain end there's a trick: simply plug a wide terminator into the spare 68pin connector. That way the drive sees full termination and cooperates.

@amigadave
You can't use "LVD" terminators on an Amiga - there's no U2W+ controller supporting it. "LVD/SE" or "SE" or unlabeled terminators do work however. Amiga controllers are pre-Fast/Async or Fast (most), Ultra (few) or UltraWide (some late accelerators) but they're all single ended.