This is Waveshare Industrial 8-Channel Relay Module for Raspberry Pi Pico. It features embedded protection circuits such as Power Supply Isolation & Photocoupler Isolation. It also comes with an ABS enclosure.

What’s On Board:

1. Raspberry Pi Pico header
2. Relay screw terminal for connecting external devices
3. Power supply screw terminal the multi relays are connected in parallel
4. Pogo pins
5. USB communication port connected via pogo pins
6. BOOT key connected via pogo pins
7. Reset key Pico reset
8. Passive buzzer controllable sound frequency
9. Power indicator
10. WS2812 RGB LED, cool!
11. 8-channel quality relays contact rating per channel: ≤10A 250V AC or ≤10A 30V DC
12. Relay operating indicator
13. Photocoupler isolation prevent interference from external high-voltage circuits connected to the relay
14. Power supply isolation provides stable isolated voltage, needs no extra power supply for the isolated terminal
15. Thickened tracks allow large current devices

To explore Different types of gas Relay modules,  click on the link  Relay Switch Modules

Note: Raspberry pi pico is not included in this package.

Features:

1. Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
2. Onboard photocoupler isolation, prevent interference from external high-voltage circuit connected to the relay
3. High-quality relay, contact rating: 10A 250V AC or ≤10A 30V DC
4. ABS protection enclosure with rail-mount support, easy to install, safe to use
5. Breakout USB port and BOOT pin, make it easy to debug without disassembling the enclosure
6. PWR indicator, RGB LED, and passive buzzer outside the enclosure
7. Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples)

Useful Link:

Waveshare Industrial 8-Channel Relay Module for Raspberry Pi Pico

Package Includes:

1 x Waveshare Industrial 8-Channel Relay Module for Raspberry Pi Pico, Multi-Protection