UTM9 | 3G USB Dongle

Hi

Is 3G USB Dongle Supported on UTM9?

Reason: Fail Over when the main Internet Connection drops.

I plugged my Huawei E1750 to a HP Proliant ML110
1) On the Front USB Ports - the stick does not light up at all.
2) On the Back USB Ports - the stick does light up.
3) I checked UTM9 Interface and Hardware I do not see it listed.

This stick is proven to work on the RED10.

Thus just want to check to confirm indeed UTM9 does NOT support 3G USB Stick for Fail Over OR am I doing it wrongly.