The NVIDIA Jetson Nano Developer Kit (945-13450-0000-100) is a compact and powerful motherboard designed for ARM CPUs, with a quad-core ARM Cortex-A55 CPU running at 1.4 GHz. It features a variety of input/output ports including DisplayPort, HDMI, USB 3.0, and Ethernet, making it ideal for connecting to a range of devices. The on-board audio and video chipset also provide additional functionality, while the PCIe expansion slots allow for easy expansion. The sleek AT form factor and NVIDIA branding make it a desirable choice for developers looking to build custom computing solutions.