Pros: None.

Cons: I have tried every combination of USB mice and keyboards I own and/or can get my hands on. I've tried over a dozen of each and this thing will miss keystrokes and causes every mouse to be sluggish. The only way it's even usable is if I'm careful to watch the screen as I type, and not type fast. And don't plug the mouse into it. StarTech support is no help either. They won't honor their "lifetime" warranty claiming that the device is working as it is designed and not even offering an exchange.

Overall Review: I bought this to work with a KVM that only supports PS/2 interfaces. I have over 6 of these in current use and this PS22USB was purchased to find a way of getting USB mice & keyboards replaced and/or upgraded on these multi-server systems. But even standalone on a single PC this device does the same thing. And again, I've tried many different PC's. Not just servers. Along with many different OS's.

Pros: Decent design. Lacks a few points of adjustment I would like. One being that you have to keep guessing at the point to lock it into the cup holder so it faces at the angle you wish for.

Cons: The stated specification, notably the 10.1 tablet size, that will fit in it is not going to be always correct. It depends on the model of tablet. It does not fit one of mine. A G-Tablet. I have had it a long time and had hoped to use it with a popular ODBII app on the tablets bigger screen. A few other devices are held well enough. But it was the G-Tablet I purchased this to work with.

Overall Review: Depending on your vehicle, the cup holder isn't designed to hold something steady. Especially attached to something like this. And no matter how hard I've tried to lock it into mine. It will bounce free at some point. The heavier the device. The quicker it will happen. One cracked touch screen already due to this.

Pros: Works with Android Torque (Free) and all the other free software I can find so far.

Cons: Is a ELM327 clone, though high quality.

Overall Review: The unlabeled disk that came with my reader has CRC errors on 2 of the files. There is no URL on anything that came with it for support of this specific device.