Transcend TS16GF700 Key (USB3) is really fast. Even on a USB2 port it goes 2x faster than a (formerly) good USB2 key. Its price is only slightly higher, the choice is needed. I deplore the USB key manufacturers communication opacity that give references and obscure names that confuse direct comparisons of performance and may make us buy a product at a price totally outdated newer. Ultra fast delivery by Amazon, as usual.