Samsung PM871 256GB 2.5 inch SATA 6.0 Gbps Solid State Drive, SSD MZ7LN256HCHP-00000 Model: PM871, Capacity: 256 GB Interface: Serial ATA 6.0 Gbps, Form Factor: 2.5 inch Sequential Read: Up to 540 MB/s Sequential Write: Up to 280 MB/s