The Central Station 3 plus serves as a multi-protocol control unit with its high-resolution, modern color touchscreen, two throttle controllers, and the integrated central track diagram control panel, allowing for easy and comfortable operation of locomotives and the entire layout. Up to 32 functions can be activated for locomotives, while up to 320 Motorola or 2048 DCC accessory items are possible. Additionally, the Central Station 3 plus features two built-in locomotive card readers (for storing locomotive data on a locomotive card or for quick access to the locomotive by inserting the locomotive card), an SD card slot for memory expansion, and an integrated speaker for playing typical model railway sounds. A powerful booster is integrated to supply the layout with power and switching current. The Central Station 3 plus includes an integrated s88 connection, two built-in USB hosts (for example, mouse, keyboard, USB stick), a USB charging port, a network connection for communication with a PC, connections for two Mobile Stations, a connection for external speakers, and additional connections for the Märklin bus system. Load capacity at the track connection: max. 5 A, load capacity at the programming track: max. 1.2 A.