It's one of the fastest USB 3 sticks and it's 60% off. So it's not the cheapest but it's got a lifetime g'tee and FAST.
If you vote cold please say why cos I'm curious.
NAND U100 Controller USB3 bridge chip USB3 connector
It's as if you stuck a normal 2.5" SSD in an external USB 3 drive enclosure, but much smaller.
If you want to check for yourself, these sticks also happen to support S.M.A.R.T monitoring commands. The controller does, and the little USB converter chip inside the stick also supports S.M.A.R.T, however the operating system of your choice may not support reading S.M.A.R.T info over the USB bus, Mac OS X needs a special driver that could do it (it's on Github, called OS-X-SAT-SMART-Driver).
Transfer large photos, videos or other files up to 10 times faster than USB 2.0
Super-fast transfer speeds (up to 190 MB/sec)
USB 3.0 enabled (USB 2.0 compatible)
Secure file encryption and password protection with included SanDisk® SecureAccess™ software
Retractable drive protects your data and comes with 2GB of online backup.
The SanDisk Extreme USB Flash Drive measures 2.79 by 0.84 by 0.45 inches (70.87mm x 21.34mm x 11.43mm) (H x W x D).
It is backed by a lifetime limited warranty