The ThinkCentre Nano IO Expansion Box connects to Nano IoT PCs via a Type-C connection, providing extra vertical IO offerings such as Power over Ethernet (PoE), digital input/output, and a serial port (RS232/422/485) offering flexibility and adaptability during system integration. DC cable provides voltage input to the IO Box and Nano IoT PC simultaneously, saving customers the extra burden of an AC/DC power transfer in industrial DC power supply environments.