new and high quality. Features: With a standard 40PIN GPIO header, it can be directly connected to the Jetson Nano. The acrylic bottom panel isolates the Jetson Nano from the relay expansion board. It includes a quality relay component with a maximum load of 5A 250V AC or 5A 30V DC. Indicator lights are provided to monitor the relay's operating status, making it easier to track. Optocoupler isolation prevents interference from high-voltage circuits, and the relay control pins can be configured via jumpers. Specifications: Material: Metal and Plastic Weight: Approx. 100g Size: 79x100mm/3.11x3.94 inches Note: Please allow for 1-2cm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x 3-CH Relay for Jetson Nano 1x Acrylic Panel 1x Screw Package