3 channels relay control:configurable control pin, up to 2x stackable
3-CH relay control: quality relay component with optocoupler isolation
Indicators and selection jumpers: easy to monitor the relay operating status, Control pins of relays are configurable

Features

Standard 40PIN GPIO header, directly pluggable onto Jetson Nano Developer Kit B01 and Jetson Nano 2GB Developer Kit
Incorporate quality relay component, max load: ≤5A 250V AC or ≤5A 30V DC
Optocoupler isolation, prevent interference from the high voltage circuitry
Indicators for monitoring the relay operating status
Control pins of relays are configurable via jumpers
Acrylic bottom panel, isolating the Jetson Nano from the relay expansion board
Comes with development resources and user manual (python and python-bottle examples)

Resources & User Manual

https://www.waveshare.com/wiki/3-CH_Relay_for_Jetson_Nano?amazon

Package Content

3-CH Relay for Jetson Nano x1
Acrylic panel x1
Screws pack x1