Opticaddy© SATA-3 HDD/SSD Caddy Adapter & External USB Superdrive Enclosure KIT for Apple iMac (2009, 2010, 2011) und Mac Mini (2009, 2010) OptiSpeed Technology (original adapter set)

Good solid design but the screws didn't fully align in my Imac. I needed to remove a small piece of plastic for this to fit with all the screws but not a big issue. I'm sure this is designed to fit Imac's and Macbooks alike so a little extra plastic was no issue for me.

This kit allowed me to rejuvenate my raging iMac by installing an SSD