Note: Non-Apple branded products,Compatible with iPhone models Product information material: metal Interface: USB+L ightning Color: business black, aurora silver, champagne gold, local gold Size: 63x26x 10mm Working state current: ≤100mA Waiting state current: ≤30mA Working temperature: 0°C~+70°C Write speed: 10-20M/s (read and write speeds vary due to different test platforms) Reading speed: 20-40M/s Working voltage: 4.75V-5.25V Storage temperature: -30°C-55°C Read before you buy: 1. Please download the APP software (Y-DISK) before using the Apple mobile phone. If the APP is not downloaded, it cannot be used. If there is no response after plugging it in, please see if the phone has a protective cover. Just remove the protective cover. 2. Because this product is for Apple mobile phones, not for Android Packing list: U Disk x1