Dahua C970 256GB M.2 NVMe PCIe Features:

Capacity: 256 GB Form Factor: M.2 NVME Port: PCIe Gen 4.0 x 4 Net Weight Max: 8 g (0.02 lb) Product Dimensions: 80.0 mm × 23.0 mm × 4.8 mm (3.15 × 0.91 × 0.19) Memory Component: 3D TLC Power Consumption: 2848 mW (max)