Bought to replace an old 3.5 "drive in a PC 'old'. Lets get the boot from 5 'to 1'30 with no mod system. Very easy to assemble and install. Small note, though Samsung offers PC desktop upgrade kit, this product offers a matching tray 3.5 "-> 2.5"., a SATA / USB adapter to install a SATA cable and all hardware careful to follow the procedure 'install offered by Samsung (Samsung migration).