Secure upgrade plus offers an upgrade path from current Dell SonicWALL products, as well as a trade-in path from competitors' products. This offer recognizes the past investments that customers have made and helps them maintain optimal security by letting them easily and affordably replace their existing security appliances. Customers who purchase the complete set of subscription services and support when upgrading a Dell SonicWALL 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 and renewing services each Year.