Fastest SSD-Like USB 3.X Flash Drives For Mac
That hasn't always been the case as typical flash drives haven't been particularly speedy. One of the performance leaders in the laptop and M.2 SSD storage space - SandDisk delivers a super-fast flash performance. It's Extreme Pro Flash Drive can deliver up to 420 MB/s read speeds on a USB 3.0/3.1 port.
Other worthy contenders of note are Patriot's SuperSonic RAGE 2 flash drive claiming speeds up to 400 MB/s, or the PNY Pro Elite flash drive claiming similar performance. Note that LARGER flash drives (like SSD's) in the 256GB / 512GB capacity range deliver faster speeds than smaller capacity drives do. So if you can afford it - buy UP in size for the best transfer speeds possible.