Data transfer rates of up to 150MB / s are not uncommon in connection with my old laptop HDD with 500 GB. Ideal if you are switched to an SSD and wants to use his old disk as an external drive on. Literacy rates are consistently in the 100 range. For an external enclosure to the price an absolute blast. Easy to install the hard drive, a screwdriver was, as the screws. Does what it should and is from time to time in my application.