The Expandable Accessory System (EAS) was created with future expandability in mind. The architecture of the EAS allows users to connect multiple accessories, daisy-chain style, to the Superchips' TrailDash. The ability to daisy-chain multiple accessories using the EAS allows users to monitor and display dozens of parameters on a single device. *EAS Starter Kits are only available to work with the TrailDash. In order to use the EAS accessories you must have an EAS Starter kit (part # 98602). This product ships in approximately 1 days