Just received this Kingston DataTraveler Locker+ G3 to play with. It's a USB3 device, the primary partition shows up as a CD, you run the software (which doesn't need install) and it will create an encrypted partition (or give you access to it):



I ran some speed tests with NirSoft USB Flash Drive Speed Test and here is the result:



For comparison, here is a C300 SSD in a USB3 external case:



Now, this is a Sony memory key, purportedly USB3 as well. Can you see the difference?



And below are a couple of USB2 devices (HP-branded and generic one). See how the write speed on the Sony USB3 is no better than USB2?