BRAND NEW FACTORY SEALED. 2TB WD_BLACK SN850X Gaming Internal NVMe PCIe 4.0 SSD. Designed specifically with gaming enthusiasts in mind, this high-end SSD is designed to deliver extreme PCIe 4.0 performance with up to 7300 MB/s sequential read speeds, which is about 4% faster than a regular SN850 drive. The SN850X also features sequential write speeds of up to 6600 MB/s. With random read and write speeds of 1,200,000 IOPS and 1,100,000 IOPS, respectively, demanding games and applications load in a flash. Game Mode 2.0 pushes Windows gaming performance even further with features such as load prediction. Near-Max PCIe Gen 4 Speeds. The WD_BLACK SN850X NVMe SSD delivers output approaching the limits of the PCIe Gen 4 interface to help you get ultra-fast performance from your system. Game Mode 2.0. Game Mode boosts the performance of your Windows-based computer system with features such as load prediction to ready game assets, overhead balancing, and adaptive thermal management. With 2TB of storage, you’ll have space to install massive games alongside applications and video clips of your best moments. The WD_BLACK SN850X is built to last with a 1.75 million hour MTTF (mean time to failure) and an endurance of 1200TB.