The carrier announced the prepaid product with a $149 launch offer, which includes the USB modem and 2GB of data.
After June, the data allowance that comes with the starter pack will drop back to 500MB.
Recharges start at $19 for 500MB. Options for 1GB ($29) and 3GB ($49) are also available.
Users who recharge online with a credit card get 10 per cent more data, the carrier said.