Altus Four Fader Expansion Licenses accompany a base license (3002-00114). Each Expansion License increases the systems fader count by a quantity of four. A total of five (5) licenses may be added to an Altus instance to create the maximum 24 fader Altus. When purchasing the subscription version of the Altus Four Fader Expansion License, Telos Alliance Professional Services is required to assist with system planning and deployment. As with all subscription-based licenses, the TelosCare PLUS SLA is included.