Seagate laptop ultra thin 500gb 25 hdd the seagate laptop ultrathin hdd is one of the thinnest lightest and most affordable hard drives designed for slim laptops and ultrabooks compatible with all laptop designs the laptop ultrathin offers up to 500gb storage capacity and a self encrypting drive option 5 mm 33 oz laptop drive delivers performance equal to seagate 7 mm laptop offerings standard sata 6gbs interface for easy integration implement up to 500gb of storage capacity in 25 les