Description: brand new and high quality Features: With standard 40PIN GPIO header, it can be directly plugged onto the for Jetson for Nano. Acrylic bottom panel isolates the for Jetson for Nano from the relay expansion board. There incorporates quality relay component with 5A 250V AC or 5A 30V for DC max load. There are also indicators for monitoring the relay operating status, making it easier to monitor the relay operating status. Optocoupler isolation can prevent interference from the high voltage circuitry and control pins of relays are configurable via jumpers. Specifications: Matetial : Metal and Plastic Net Weight : Approx. 100g Size: 79x100mm/3.11x3.94 inches Note: Please allow 1-2cm errors 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 for Nano 1x Acrylic panel 1x Screws pack