The Casing Is Made Of Aluminum Which Gives It Excellent Heat Dissipation, And The Whole Body Acts As A Heat Sink To Efficiently Dissipate Heat From The High-Heat M.2 Nvme Ssd. The Internals Are Also Cnc Machined With High Precision So That The M.2 Nvme Ssd And The Base Chip Can Contact The Aluminum Properly. Features: Machined From Aluminum Body. High-Precision Cnc Processing. Exclusively Designed For M.2 Nvme Ssd. Usb 3.1 Gen 2 Type-C Interface Specification. Color: Black. Dimension: 0.433 X 1.181 X 1.969 In. Weight: 1 Lb.