Is it ok to use USB2.0 bus only for EM7421 ( no USB3.0)

[lyt1978]

Hello everyone:
I am new for the EM7421,

Becasuse the main chip I used only support USB2.0 signal and no support USB 3.0. May I use USB2.0 bus only for EM7421 module ?

Thank you and have a great day!
Samuel

[jyijyi]

you can have a look on AT!USBSPEED in AT command user guide

https://source.sierrawireless.com/resources/airprime/minicard/75xx/41111748-airprime-em75xx-at-command-reference/#sthash.XvQ20UsP.dpbs