Apacer AS350 Panther 256GB 2.5 inch SATA III Internal Solid State Drive (SSD) 7mm Form Factor, Up to 560MB/s Sustained Read Performance, Up to 540MB/s Sustained Write Performance 3D TLC NAND Flash, Up to 30,176IOPs 4K Random Write, Up to 72bit/1KB ECC Support, Retail Box, Limited 3 Year Warranty