The Apotop S3A uses cutting-edge solid state architecture with a LSI SandForce SF-2281 controller, capable of reaching sequential read speeds of up to 555MB/s. The S3A also allows for exceptionally quick file transfers during editing and backup because of the supported 530MB/s sequential write speed. The Apotop S3A delivers random write speeds of up to 90K input/output operations per second (IOPS), providing faster data access. Your system will run like it was on steroids! It will boot in seconds and loads your favorite programs in a flash! model : ADATA XPG SX6000 Lite 512GB PCIe 3D NAND PCIe Internal Solid State Drive tag : Internal SSD