I have bought 3 of these recently as I am building a new home server and thought it would be ideal to have the hot swap sata bays, and handy too as they take both 3.5" and 2.5" sata drives, they are easy to fit with just 4 screws, then you have 2 sata cables which are supplied, and one molex power plug on each. Only bad thing I found is that the levers on the front to pull out the drives are very thin plastic and I broke one already, would have been better if they had been metal. All in all a good buy though.