the clip antenna's are compatible yes, there are a number of different connections though, so you'd need to check the model number of your modem so that you get the right one. We've tried to make it simple for you to find the right one for your device, by listing them by network and by model number.
If you have a look on the label on the underneath of your dongle (by the FCC logo,) you should see the model number of your dongle.
if you're not sure, there is a
universal one that will work on pretty much all modems, but might not boost the signal as much.