Secure Upgrade Plus offers an upgrade path from current Sonic WALL products, as well as a trade-in path from competitors products. This offer recognizes the past investments that customers have made & helps them maintain optimal security by letting them easily & affordably replace their existing security appliances. Customers who purchase the complete set of subscription services & support when upgrading a Sonic WALL product or trading-in a competitive product can save up to 50% on the total annual cost of that solution, compared to the cost of buying the hardware separately & renewing services each year.