Blazing Speeds and Unrivaled Performance Samsung's SSD 840 PRO Series is capable of delivering up to 540MB/s and 520MB/s of sequential read and write speeds for ultra-fast file transfers-including random speeds of up to 100K IOPS for the fastest real-world performance.* The SSD 840 PRO Series provides workstation-class performance for seamless video editing or the ultimate gaming experience. * Real-world performance based on PC Mark 7 performance versus leading competition model : ADATA XPG SX6000 Lite 512GB PCIe 3D NAND PCIe Internal Solid State Drive tag : Internal SSD