I have and use a RATOC System U2SCXU (usb-hd50).
With a couple other adaptors (hd50 gender changer, hd50-hd68)
I usually connect to a SLR5 tape drive for tape reading and on occasion,
also a DAT24 drive (dds3).
<hobby_plug>
www.3kranger.com/3ktapes.shtm </hobby_plug>
I use Cygwin with the commands "mt" for tape control and "dd" to read
with.
Keven Miller