The 12.1-in and 15-in TPC-1251T and TPC-1551T touch panel computers with an Intel Atom E3827 1.75 GHz processor is designed for enhanced performance and a smooth operating experience in a wide array of industries. These displays feature Advantech’s new iDoor technology, a modular way of adding versatile functionality to give system integrators the flexibility to choose the functions they need without purchasing devices that have excess costs and functions that will never be used. With isolated DI/O ports, Profibus, and CANOpen modules, the iDoor technology is designed to increase the functionality of these TPCs. There are two USB 3.0 ports and a PCI slot for adding functions. The iDoor technology slot uses a mini PCIe connector, and, if not being used for iDoor, it can be used for adding additional cards such as Wi-Fi, 3G and GPS. If further I/O ports are needed, an expansion kit provides additional storage for hard disks/solid state disk and iDoor modules.