The SanDisk Optimus GX PRO 850X is an internal M.2 solid-state drive designed for high-performance storage needs. With a capacity of 2 TB, it leverages PCI Express 4.0 x4 (NVMe) for rapid data transfer speeds, offering an internal data rate of 7300 MBps for reads and 6600 MBps for writes. This SSD is engineered to handle more than just everyday tasks, with 4K random read speeds of 1,200,000 IOPS and write speeds of 1,100,000 IOPS, suitable for demanding applications including gaming, video editing, and large data storage tasks. Equipped with a built-in heatsink, it efficiently dissipates heat to maintain optimal performance, even under intensive workloads. The SanDisk BiCS TLC 3D technology enhances durability and longevity, with an endurance rating of 1200 TB, ensuring data integrity and reliability over time. Designed to operate in a wide range of temperatures, it functions effectively in environments from -40°C to 85°C.