I for my Dell E6330 which I mainly use for business after a HD extension searched and came across on the Opti Caddy. As a hard drive, I have a Samsung EVO Basic SSD with 1.0TB capacity also ordered through Amazon. Both components were delivered within 3 days. The Caddy has 4 small Allen screws that. For installation of HD are provided. Unfortunately no suitable tool Allen was, so I had to go to the hardware store first time .... With the right tools, the SSD disk was then installed quickly. The Caddy fits perfectly in the Media Bay of E6330 in which an original Dell had previously housed optical drive. Mechanical - also in terms of locking and ejection mechanism of Opti Caddy - it should be noted no difference to the original Dell. After insertion (on the fly), the SSD hard disk was immediately recognized by Windows 7 and was in Windows Device Manager displays. All in all I have to say: just as I had imagined. Flip and works !! Very good product with Top Price / performance !!!