I bought this to transfer files from a laptop SSD to a PC hard drive, so I could reuse the SSD in a new laptop, and I needed to install the operating system on the SSD. It was very straightforward to use. It simply plugged into the hard drive on one end, and then into a USB port on my PC. IT took a little bit for the PC to read the HD (bigger than a typical USB drive) and show up as a new USB drive, but I could then simply copy/cut/paste files from it to my PC, and reformat the drive (just like a USB stick). It made that SSD look just like an other drive on the PC, and I could use any of the windows file explorer features on it, which is exactly what I needed it for. Much simpler than opening the PC and plugging the SSD into a spare HD cable inside (assuming there was one).