2 NVMe SSD, you need use it with the NVMe ssd case. If you use SATA ssd case, the hard drive will not recognize it. Different batches will have different appearances, but the function is the same. Please refer to the actual product. 2 NVMe Gen4x3 Solid State Drive Interface Type: M. 2 M key Read Speed: 5000MB/S Flash Type: 3D NAND Flash Size: 2280 Storage Ambient Temperature: -40°C-85°C Working Environment Temperature: -0°C-70°C. Ultra-fast: 5000MB/s reading and 4500MB/s writing, transfer data and play games swiftly and dependably. Rapid Heat Dissipation: Heatsink fin and thermal silicone pad included, no worry about overheat damage. Multiple Large Capacity for Selection: More available space meets different needs. Safe and Stable: Rigorous tests esure data security and pleasant using experience. Pro Performance, Pro Efficiency. Speed up to 5000MB/s, keep your system running at peak performance. Whether you’re editing large format video, doing delicate image retouching or other data-intensive workloads, just experience faster load times and more reliability. Stream Your Games Faster. Improve smoothness and stability, react swiftly to every challenge. Ready for Your Bountiful Creation. Efficiently streamline the way you transfer data and finish creative tasks. Custom heatsink fin and thermal silicone pad maximize heat dissipation. Take more heat from the running SSD, maintain peak performance for longer periods of time under even the most intensive workloads. Large Capacity Meets Your Needs. High-performance NAND particles, more available space for you. 512GB, 1TB and 2TB for selection. Without more sacrificing capacity, take the stress out of device storage when downloading games, sharing files, videos, and more. Withstand multiple strict safety tests, enjoy peace of mind in every use. S. M. A. R. TRIM NCQ Advanced Power Management Bad Block Management Power Failure Protection Low Heating Shock Resistance. SSD Real Test Speed. SSD Real Test Speed with USB4 SSD Case.