Features: The NRF2401+ expansion board deliver integration with motherboards, ensuring for development project through optimized circuit. This expansion card simplifies wiring while maintaining durability for prolonged electronic prototyping. Ideal for electronics enthusiasts, and educators seeking enhancing robotics, wireless communication. Perfect for space constrained workbenches, home labs, or classroom environments where streamlined hardware expansion transmission are critical for prototyping efficiency. This development board accessory guaranteeing consistent data for advanced applications like sensory networking Specifications: Component: Plastic Size: Approx.5.5x4.8cm/2.16x1.89inch Power: 9V Power current: 10mA Operating temperature: -20-70°C Package Includes: 1Pc 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.