240GB, SSD, 2.5'', SATA-III, Gigabyte GP-GSTFS31240GNTD; 2.5-inch internal SSD, Interface: SATA 6.0Gb/s, NAND Flash, Sequential Read speed: up to 500 MB/s, Sequential Write speed: up to 420 MB/s, TRIM & S.M.A.R.T supported