SAMSUNG 830 Series 2.5-Inch 256GB SATA III MLC Internal Solid State Drive (SSD) Desktop Upgrade Kit MZ-7PC256D/AM Type of Drive :SSD Form Factor:2.5-inch Interface SATA3 (SATA 6Gbits/s) Random Read Speeds: 80,000 IOPS Memory Type Toggle DDR 2xnm class NAND Flash Sequential Read/Write Speeds: 520 MB/s / 160 MB/s