Summary: The Transcend JetFlash 300 is a cheap piece of junk. (I have the 4 GB USB 2.0 type) I bought this hoping to that it would be fast, since it's online specs looked good. But that's not what you get. It reads at about 17 MB per sec., which is nice... but writes about 3 MB /s. That's pretty crummy, esp. when the published specs I saw for this had a much better write speed. $6 for a decent 4 GB drive? It's too good to be true.