The tray should accept any 3.5" SATA hard drive, which simply slips onto the connectors inside and is fastened down with the included screws. That's about as simple as it can get. Then just reinstall the tray into the outer sleeve. If your case already contains an eSATA port, you are good to go. Otherwise you can open it up and install the included riser plate to add a port to the rear of the PC.
Now for some benchmarks and testing.