Don't think you'll find cheaper for a genuine 3.0 64gb usb? Have this usb from a previous deal at Zapals and it works great. Brought another one because at this price I couldn't resist haha. Price works out to roughly $16.50 NZD, obviously will be slighty different depending on the exchange rate and the fees your card provider charges.
Also get 5% cash at cashrewards if you use it. :)
Max Read Speed 104.86MB/s
Max Write Speed 19.16MB/s