I bought a toshiba 16gb pendrive from a very famous ecommerce site. I got the same as I select i.e a white colour toshiba 16 gb pendrive.
as its specification is is 3.0 but its speed of transfer files is too slow, even slower than 2.0. I used it in all the ports of laptop but its transfer speed is same.
the other problem is related to its connecting issue with various devices. 3 out of 5 times it is not searched by the laptop or computer but at the same time other pendrive faces no issue.
if 3.0 16gb pendrive shows these type of issues, then I am not sure about buying another piece of that.