Hewlett Packard StorageWorks DAT 72 USB
 

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The DAT 72 model on review is the external version which is well built
with the drive enclosed in a sturdy plastic chassis. The USB cable is
fixed at the rear and the internal power supply means the drive can be
powered with standard kettle lead. Our only complaint is that the
internal cooling fan is a tad on the noisy side. The drive uses compact
4mm tapes and has the added advantage of being backward read and write
compatible with DDS-4 and DDS-3 media as well. Installation is a swift
process as the drivers need to be installed first after which the drive
can be plugged in.