I bought this product (in 12.5mm version) to the PC of my girlfriend, ACER Aspire 5750G to add an SSD in place of the optical drive. This adapter can be mounted very easily, and can accommodate both an SDS a HDD (2.5 "). It is very easy and the front cover of this adapter can be removed to put the optical disk drive ... so no visual change on the laptop PC.
Very good product (can be a bit expensive when I bought: 29.90)