In article ,
Pancho   wrote:
>I don't really understand what "UASP" is or why you care. The above
>device works with the Pi4 and a 2.5 hdd.

It's USB Attached SCSI (vs. Serial Attached SCSI (SAS) that's common in
servers nowadays or the really old-school parallel SCSI well-known to Apple
users and such).  It's faster than the bulk-only transport mode provided by
the USB mass-storage class, probably because there's less translation of
commands and responses between the host and the storage device.

How much of a difference that would make on a Raspberry Pi (especially the
pre-RPi4 models) is unclear, but it's a win for most desktop PCs running an
up-to-date OS.  (Linux supports UAS.  Windows 10 supports UAS, but Windows 7
doesn't.)

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 / v \ Scott Alfter (remove the obvious to send mail)
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