As Michael G. Schabert wrote ...

> >differential card new, since buslogic is usually quite cheap, but
> >I got my differential ncr cards used, and got used or new-but-surplus
> >diff drives. For some reason, there are lots of WD Quantum Atlas II's
> >around...
> 
> I've seen truckloads of cheap "regular" differential drives (i.e. not LVD).
> I know that these can't be driven by a SE scsi controller, but can LVD
> controllers handle them or is it totally an "odd man out" technology? If
> so, that seems to be the cheapest way to outfit a machine currently.

LVD and HVD are not compatible.

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