Stupid question: backplane/cage size limits

[the_b_man]

A lot of 4-in-3 HDD cages with backplanes, as well as USB external enclosures, have specs like "up to 3 TB HDD supported". Do these specs actually apply/matter? ie. Any reason not to put a 4 TB drive in?

Especially with a backplane, which I would expect to be nothing more than a direct connection from drive connector to the rear connector.

 

[Blue Fox]

Normally manufacturers put down whatever is the largest available drive size at the time for marketing purposes. The majority of hot-swap enclosures like that have no logic and therefore just act like a SATA cable, so any disk size should work.

 

[patrickdk]

It could be debated that it was tested for vibration tolerance.

But normally not, and they just list the largest disk