USB 3.0 flash drives generally have a faster read and write speed than those with a USB 2.0 connectivity. A few years ago, Tom’s Hardware did a comprehensive speed test of USB 2.0 and 3.0 flash drives. The results revealed that the slowest USB 3.0 drives that they tested had a write speed of 11 MB/s with the fastest at a little over 286 MB/s. The USB 2.0 drives clocked in at around 8 MB/s to nearly 10 MB/s. In other words, the worst-performing USB 3.0 flash drives still performed better than USB 2.0 drives, although by only a slight margin. Bottom line, if you want a faster flash drive, go for USB 3.0. Note that the latest technology in USB drives incorporate the USB 3 1 interface for much faster read write speeds. A few examples of flash drives with USB 3 1 support are the ScanDisk Extreme Pro, the Samsung Fit Plus, and the Patriot Supersonic with read write speeds of 380 Mbps and 70 Mbps respectively.