Features: brand new and high quality Support hot plug & for play. Not need external power supply. USB 2.0 connection, support different types of os. Solid state storage, shock-proof and electromagnetic proof. Durable data storage. Rated capacity: 64GB approximately 58GB-60GB Easily transfer files and data between smartphones, tablets and computers efficiently, greatly improve work efficiency. Specifications: Capacity 64GB = approximately 58GB-60GB Interface Type: USB2.0 U Disk Material: Metal with Crystal Data transfer rate: 10-20 (MB/s) Maximum Read Speed: 20 (MB/s) Maximum Write Speed: 10 (MB/s) Interface: USB 2.0 Colors：White/Yellow/Red/Purple/Green/Blue Product Type: Flash Disk Size: Approx 137x14.6x5mm/5.39x0.57x0.2inches Package Includes: 1 PC x Flash Drive note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.