the adapter will operate at me with a Samsung 830 SSD. My iMac starts up very quickly and also the programs immediately after click here. The Blackmagic Speed Test brings it to 360MB / s write and 360MB ca. / s read. An SSD in the iMac is installed be sure faster but it is with the quite flexible and can replace the disk in seconds. Firewire is much slower and now I use the internal hard disk for data. Unfortunately, a cable must be purchased separately, therefore the whole quite expensive,