Mbps stands for “Megabits per second,” and simply means the speed at which your files will be transferred from your PC to a device—in this case, a USB flash drive. Generally, the larger USB flash drive’s capacity, the better nand flash chips, the higher-compatibility controller, the quicker it will be able to transfer your files.

    Nand flash chips grades, quality and controller decides the reading and writing speed of USB flash drives. Only higher reading and writing Mbps can read and write data in USB flash drive faster.