Specification: Optional memory: 32G/64G/128GB/256GB Colour: Red Interface Type: USB 3.0 Material: ABS + Alloy File System: FAT32 Compatible with: Windows, Centos7, Redhat7.5, WindowsSever2012/2016 Product size: 84*25*11mm Package size: 149.3*96*18.6mm Package weight: 59.5g Package list: 1* Encrypted USB flash drive 1* User manual