Write speed on a flash card is dependent on the class of the card. A class 2 or 4 is a lot slower than a class 10. The class should be in a circle on the label. As for USB sticks, I dont know. I do know none of mine are very fast at all.
Here are some test ratings from others...
http://usbspeed.nirsoft.net/?pdesc=...Device&vname=SanDisk+Corp.&vid=1921&pid=21808
Here are some test ratings from others...
http://usbspeed.nirsoft.net/?pdesc=...Device&vname=SanDisk+Corp.&vid=1921&pid=21808