flash drive speeds

[zoran]

Is there any way to find out how fast are usb flash drives are? Perhaps there are apps that can benchmark read & write speeds etc?

 

[Weaselboy]

‎Blackmagic Disk Speed Test

‎Disk Speed Test is an easy to use tool to quickly measure and certify your disk performance for working with high quality video! Simply click the start button and Disk Speed Test will write test your disk using large blocks of data, and then display the result. Disk Speed Test will continue to...

apps.apple.com

Blackmagic is pretty popular around here and will do what you want.