Features: Featuring multiple connection option for enhances project capabilities.Equipped with double USB 2.0 Port, fast Ethernet, 3.5mm output, a UART serial port, and power outputs of 5V and 3.3V, this expansion board is suitable for integration and performances.Suitable for electronic engineers and students, this expansion board caters to those who are passionate about project development and require reliable hardware components.Whether you're building home devices or innovative solution, this expansion board provides the necessary interfaces to bring your creations to life.Experience the convenience of expanded connection and power option that make for ZeroW projects more functional than ever before.Specifications: Component:PCBSize:Approx.6.5x3cm/2.56x1.18inchPackage Includes: 1 Set Expansion Boardnote: 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.