Description. 100% brand new and high quality Interface: USB 2.0 Read speed: 8MB -15MB/sec Write speed: 4MB -6MB/sec Power: No external power supply required Mac and PC compatibility Regarding capacity. Due to different calculation methods, or the presence of bad blocks, or certain built-in software, the memory capacity of a USB stick may be displayed less on a PC. And the higher the capacity, the greater the deviation. Storage industry area calculation method. 1GB = 1000MB = 1000*1000KB = 1000*1000*1000B Operating system calculation method. 1GB=1024MB=1024*1024KB=1024*1024*1024B So 1GB of storage is shown in OS as (1000^3)/(1024^3) 0.93GB 8G = approx. 7.4G 16G=approx. 14.6G 32G=approx. 29.1G Notes. 1. To avoid data loss or mechanical damage, do not power off your computer during transfer. 2. Do not remove the USB memory stick during use as data may be lost. 3. It is best to safely eject the USB stick to your computer after using it as this will help extend its storage life. 4. Please format the memory drive using FAT32 or exFAT. Please do not format the USB memory stick frequently as this may damage it. Product Includes. 1*USB flash drive (without box, no accessories other than product included ) Attention. 1. The monitor used is not the same, the computer is not the same, the angle of photography is not the same, there may be angle colour problems. 2. Pure manual measurement, there may be 0-1cm error.