Optimum Online Ultra 50 available only with a subscription to Optimum Online for an additional $4.95 per month. Minimum system requirements and configurations apply. Free-to-use modem is the property of Optimum and must be returned in good working order. Lost, stolen, unreturned, or damaged equipment is subject to a non-return fee. Many factors affect speed. Actual speeds may vary and are not guaranteed. Smart Router is available to new Optimum Online customers Smart Router free for the life of the acct when Optimum Online is maintained. Not available in all areas. Other restrictions apply. Where available.