Silicon Power M.2 2280 A55 256 GB Half-slim Serial ATA III SLCUltra Compact for Up to Date Devices Designed with M. 2 2280 form factor (80 22 x 3. 5 mm), compact sized and case less A55 M. 2 2280 SSD perfectly fits into tiny and thin devices such as ultrabooks, tablet computers and mini PCs. Enhanced Performance for Intensive Workloads Equipped with high quality synchronous NAND flash chips and SATA III 6 Gb s interface, the A55 M. 2 2280 offers impressive transfer rates of up to 560 530 MB sec read write. So if