After you have used up 10GB, excess data charges of $2 per GB will apply.
The conenction fee of $99 on the One-Month plan is lowered to $69 on a 12-month plan. There is no connection fee for a 24-month plan.
The modem costs of $109 upfront for the One-month plan is lowered to $50 for the 12-Month Plan and $0 for the 24-Month Plan.