From the PC, the housing is recognized as "Norelsys NS1068," one of the usual USB-SATA controllers. If it actually exactly this chip and should not be the NS1068X, only a theoretical transfer rate up to 3Gbps (SATA2) would be possible, incidentally. That should, however, be a damn generally, the speed is not achieved with normal hard drives anyway.
I have a Seagate Momentus 5400.6 500GB built into the housing and tested on both USB2.0 and the newer 3.0 connection. On USB2.0 are writing about 25MB / s read and 30MB / s, so the usual average. On USB3.0 it goes faster to: Writing 64MB / s and read 79MB / s, which is already relatively close to the limit of the installed hard drive and seen such a good value.
The status of the drive will appear Duch a blue LED, the red during disk accesses flashes.
In addition to the supplied housing is still a 60cm long USB3.0 cable, another piece of foam and the English manual here. My first case was on a corner a few distinct scratches, was therefore likely to be classified as a B-Ware. The seller "SpringRainDEU" has then offered me a cost-neutral conversion, the replacement housing is now error-free.
Conclusion: For the price of housing USB2.0 one here gets a handsome and functional USB3.0 product, strong buy recommendation!