The most relevant thing to say to most people about this caddy is that it works with many other Dell desktop computers including OptiPlex and my Precision workstation.Before my (refurbished) Precision workstation T5610 arrived, I called Dell to make sure I had everything I needed to replace one of the installed hard drives with 2 SSDs. They told me I'd need to get two of these caddies to install them. Well they were wrong. The caddy was already in the machine. I just needed a standard 3.5" to 2.5" adapter to place the two SSDs in one of the existing caddies..As it turns out (at $6 apiece - used, from an Amazon seller), I'm keeping the caddies so I can swap other hard drives into the system easier. I just leave the drives in the caddies and when I want to put another drive in, I just have to pull the SATA cable and power cable off the installed drive, slide the new caddy in, and reconnect the cables. The (completely) tool-free case of the Precision makes this process a 20 second operation. I don't do this often. But when I want to ghost my RAIDed SSD system drive to a hard drive, it's faster to change the HD out and take advantage of SATA speeds than it is to swap the drive in my external enclosure and put up with USB speeds.