I was looking to buy a decent pendrive for my personal use and I came across SanDisk Ultra 64 GB USB 3.0 Flash Drive. I have previously seen built quality of this pendrive and I had liked it more than the ones by SanDisk in which you have to slide the pendrive which is difficult to use.
I checked the speed of the pen drive via Crystal Disk Mark, movie copy, and read. On Crystal Disk Mark the pen-drive performed decently. On copying a multiple gigabyte movie to the Pendrive the write speeds were never above 37 MBPS. On reading and copying the movie from Pendrive to my Adata SSD with speeds was about 145 MBPS which is good and exceeds reading on the product box of up to 130 MBPS.