Works perfect with my Sony Xperia U.
But only with my 2GB or less Pendrives from Kingston. If I use the 4GB it says it can not connect as it takes to much power. Still it works perfect with my 2GB pendrives. Now I can backup with ease my data and also watch my favorite shows/movies directly in my Smartphone.
The quality is very good, very hard rubber/plastic which will NOT brake at all!
I can recommend it!!