Got mine yesterday. Wanted to test it before trying it in the car, so tried hooking up a flash drive, see if it would connect to my computer. Nothing. On all of the inputs/outputs. Dead unit. Took it apart, examined everything, found several janky solders (I do electronic repair, so am equipped to find and fix this kind of thing), but nothing that shouldn't be working. I noticed the cheapo connector they used to connect the 2 pcbs doesn't fit right when the thing is installed in the case - possible problem. Cleaned them up, tested with the 2 pcbs held firmly together, everything works as it's supposed to. Reinstalled the pcbs into the case, noted that there's no way to fit that problem connector in all the way, and resealed the case - nothing, dead unit again. So in my case, it's the lousy connector between the 2 pcbs that's killing it. I don't know if I have the inclination to futz with it further. So now, I have 2 non-functional hubs - meh.