PCI-Express 4.0 x4. Up to 7200 MBps. Up to 6600 MBps. Up to 1,200,000 IOPS. Gain the ultimate gaming edge Insane speeds up to 7,300MB/s (1TB – 4TB models) deliver top-tier performance with ridiculously short load times – for the elite gaming experience you’ve been waiting for. Heatsink for the win All capacities have an optional heatsink version that’s not only eye-catching, but also helps your rig maintain peak performance through your most intense gaming sessions. More room for more games Capacities up to 8TB built with Western Digital TLC 3D NAND, means you get to keep more games at the ready – and get into the action even faster. Do more with WD_BLACK Dashboard The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting, and, exclusively on the SN850X SSD, enables Game Mode 2.0 to transform your gaming experience. Future-forward features The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM). DirectStorage supported Improve load times and get precious time back with Microsoft DirectStorage technology. Average Active Power: 130mW Maximum Operating Power: 8W. 32°F to 185°F (0°C to 85°C). 40°F to 185°F (-40°C to 85°C). Operating Vibration: 5 gRMS, 10-2000 Hz, 3 axes Non-operating Vibration: 4.9 gRMS, 7-800 Hz, 3 axes.