USB sticks are not designed to be the same. In the same level, you have the speed difference between USB 2.0 and USB 3.x. But even among similar USB drives, you'll find variations in read and write ...

USB is fast but complex protocol. This // test tends to measure how well optimized the USB code is. For // 12 Mbit/sec (full speed) USB, 36848 is the theoretical maximum // lines/sec. For 480 Mbit/sec ...

(1) 测试平台 1 WIN10 32/64位（免驱动），WIN7 32 /64 需安装驱动 2 UsbTest.exe 测试工具，传输速度500K 左右 (2) 通讯协议说明 ...