Pros: Easy install, worked as advertised. I installed my boot Samsung SSD in the tray and hooked up one USB to a 2.0 header on my MB that was previously unused. Unit is well built and complements the front of my case nicely. Blue led lights up on tray with installed drive. Drive trays eject easily and although they have locks on them you don't need to lock the drive to use it (if you were to lock the drive then lose the very tiny key you would be screwed). Great upgrade to my case.

Cons: You can only use two of four screws that anchor the hd because if you install the front ones they stick out and block the tray from going in. My data cables all have a 90deg. angle connector on the end and because of the recessed sockets I'll need to get new cables to use the other drive bay.

Overall Review: One of my USB 3.0 thumb drives was not recognised but this may be my MB and not the fault of the unit.

Pros: Super fast, lightweight laptop with outstanding graphics. Large touch pad is easy to use. USB3 ports and a HDMI also. Latest wifi is blazing fast.

Cons: No cons that I can see.

Overall Review: Everything I want in a laptop at a great price. Such a great value I may buy another as a gift.