2 TB M.2 PCI Express 4.0 Read speed: 5150 MB/s 650000 IOPS Write speed: 4850 MB/s 800000 IOPS NVMe Component for: PC/Laptop Upgrade Your Rig. Elevate Your Game. Get into the action now with the WD_BLACKSN770 NVMeSSD. This purpose-built gaming drive boasts a PCIe® Gen4 interface that delivers blazing speeds of up to 5,150MB/s (1TB and 2TB models).First into the Action Get into the match fast as you zoom past load times with blazing speeds of up to 5,150MB/s2 (1TB and 2TB models). Smoother, Faster GamingImprove in-game responsiveness and streaming with the PCIe Gen4 interface for a performance boost you can see and feel. The interface is compatible with leading CPU and motherboard platforms and backwards-compatible with PCIe Gen3. Store MoreAvailable in capacities up to 2TB, the WD_BLACK SN770 NVMe SSD gives you tons of storage for your latest games with space left over for future updates and downloadable content. Turbocharge Your LaptopGet up to 20% more power efficiency at maximum