Internal Solid State Drive (SSD). PCI-Express 4.0 x4. Up to 7300 MBps. Up to 6600 MBps. Up to 1,200,000 IOPS. Up to 1,100,000 IOPS. Get the Ultimate Gaming Edge Insane speeds up to 7,300 MB/s deliver top-tier performance with ridiculously short load times for the elite gaming experience you’ve been waiting for. Soup Up Your Rig Extremely low latency loads graphics fast with minimal stutter and lagging for an incredibly smooth, satisfying gaming experience. More Room for More Games Today’s A-list titles can take up 200GB or more of storage. A range of capacities from 1TB to 4TB means you get to keep more games at the ready and get into the action fast. Heatsink for the Win The WD_BLACK SN850X NVMe SSD 1TB and 2TB drives have an optional heatsink version that not only looks awesome but also helps your rig maintain peak performance through the most intense gaming sessions. Game Mode 2.0 The latest version of Game Mode serves up even more PC performance-boosting features like load prediction to ready game assets for fast in-game loading. Near-Max PCIe Gen43 Speeds The WD_BLACK SN850X NVMe SSD delivers output approaching the limits of the PCIe Gen4 interface to help you get ultra-fast performance out of your storage and system components. Operating Vibration: 5 gRMS, 10-2000 Hz, 3 axes Non-operating Vibration: 4.9 gRMS, 7-800 Hz, 3 axes.