For customers requiring ongoing support there are ETM42-CX Power Supply 570W, Basic, and Self-Maintenance annual service contracts. ETM42-CX Power Supply 570W is the ideal solution for maximum user productivity and system utilization. It ETM42-CX Power Supply 570W provides high-level personalized support and saves customers the time and associated costs of doing their own routine software maintenance and installation of updates and also ETM42-CX Power Supply 570W provides critical onsite assistance when required. Basic is designed ETM42-CX Power Supply 570W for customers who have the time, technical expertise, and resources to maintain their own systems, but who need highly responsive answers to questions or problems crucial to their business. Basic Service provides access to software specialists and to online information. Self-Maintenance is for customers who have highly technical staffs ETM42-CX Power Supply 570W with the time and resources to ETM42-CX Power Supply 570W maintain their own system software and who require only updates and written communication channels with Digital.