Specifications: Color: Red/Black/Blue Material: Aluminum alloy+plastic Interface: USB3.1/Type-C interface Available format: ExFAT/NTFS Product size: 7.5*5.5*1CM Compatible with: mobile phone/desktop/notebook Applicable system: windows 7,8,10,11 and mac os Android Storage temperature: 0℃~40℃ Data transfer speed 520MB/S