Features: USB3.1 Gen1 high-speed transmission protocol, the sequential read speed up to 430MB/s. Adopt solid state flash particle to realize ultra- performance, improving your working efficiency. Large capacity, fully meet the requirements for storing and transferring videos, songs, and photos.Zinc alloy, shockproof, wear-resistant and -fall, better your valuable data. Small and portable design allows you to take important files with you wherever you go. Supports multiple formats of, photos, videos and office files. Specification: Type: portable solid state U disk Model: TU100 Pro Capacity: 128GB/256GB/512GB/1TB(optional) Material: Zinc alloy Sequential read speed: Up to 430MB/s Sequential write speed: Up to 400MB/s Interface type: USB3.1 Gen1 Compatible system: /Win7/Win8/Win10, etc. Item size: 6.97 1.8 0.78cm /2.74 0.71 0.31in Packing list: 1 U disk.