Micron’s LexarJumpDrive M20 is our top choice because it provides a retractable micro USB 2.0 and a standard USB 3.0 male plug all-in-one, making it easier than ever to transfer files between micro USB compatible mobile devices and computers. It has an actual capacity of 14.8GB and has read Speed as 106.0 MBps, Write Speed as 15.3 MBps. The Lexar JumpDrive M20 may not be flashy in appearance with its plain white casing and blue plastic accents, but Micron makes up for this with helpful features. A nice size built-in key ring helps prevent loss, and its ability to work with phones, tablets and PCs is a huge plus. The JumpDrive M20 read files at 106.0 MBps and wrote at 15.3 MBps, outperforming all the other USB flash drives on this list. The JumpDrive M20 has the most traditional-looking flash drive design of the dual-connector drives I've reviewed. With a white, plastic body and blue slider and end-cap, the JumpDrive M20 look...