Features: Featuring Gigabit RJ45 Ethernet port for fast 1000Mbps networking and hdtv output for 4K video transmission. This adapter integrates including RJ45 Gigabit Ethernet, hdtv, and 3.5mm, enabling seamless hardware expansion through plug and play installation for CM5 modules. Ideal for developers, home enthusiasts, and STEM educators seeking networking connection and multimedia capabilities. Perfect for building media centers, industrial automation, or educational prototypes requiring stable Ethernet connection and visual output. Designed with future proof expandability, this expansion board supports additional for embedded integration. Specifications: Component:ABS Size:Approx.85x56x16mm/3.34x2.2x0.63inch Package Includes: 1 Set Expansion Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.