Jup - USB 3 "SuperSpeed" (5 Gbps) link negotiated on my Mac Mini 2012.
And yes, about 100 MB/s when it feels spiffy. Not that I really need the speed. Just the storage.
Quiet in use.
You might also want to take a look at another post I made which contains some tips and information for the WD My Passport USB 3.0:
https://forums.macrumors.com/posts/16569773/
The Mac software tools seem to be of pretty decent quality.
Cheers,
Nikolaj