M.2 SATA SSD 128GB Silicon Power Ace A55, Interface: SATA III 6Gb/s, M.2 Type 2280 form factor, Sequential Reads: 560 MB/s, Sequential Writes: 530 MB/s, MTBF 1.5mln, SLC Cash, BBM, SP Toolbox, SM2258XT, 3D NAND TLC