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 PlasticWeight: Approx. 100gSize: 79x100mm/3.11x3.94 inchesNote: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 Nano1x Acrylic Panel1x Screw Package