WP8025ADAM - module with 8 relays and RS485 interface

Module with the SLA-05VDC-SL-C relay with a maximum load of 30 A. The board is equipped with a Grove connector and is controlled by a digital signal. Seeed Studio 103020012

Module with 8 relays with a voltage of 12 V and a load of up to 7 A. The board communicates via the Bluetooth wireless interface. Numato Lab BTRL001

Module with eight 240V/2A relays controlled by 5V with a fuse triggered by a high state. modSSR-8CH-H

4-channel module with relays, designed to work with the Raspberry Pi. It can switch 120VAC/2A or 24VDC/2A signals. SB Components 14071

Module with MOSFET transistor, 5-36 V, 20 A, switching frequency 1 kHz. DFRobot DFR0457

Module with eight 240V/2A relays controlled by 5V with a fuse triggered by a low state. modSSR-8CH-L

This module allows independent control of two Omron G5LE-14-DC5 SPDT relays, supporting currents up to 10A. Thanks to built-in BSS138K MOSFETs, it can be controlled directly from 3.3V or 5V development boards such as Arduino or Raspberry Pi. Each channel is equipped with an LED to indicate relay activation and 5mm screw terminals for convenient circuit connection. Pololu 5665

Industrial Ethernet module that allows control of 30 relays via RJ45 port. It uses Modbus TCP protocol, PoE (Power over Ethernet) power supply and comes with a rail-mounted housing. Waveshare Modbus POE ETH Relay 30CH

2-channel module with relays designed to work with the Raspberry Pi Pico. It can switch signals up to 250 V AC and 7 A or 30 V DC and 10 A. SB Components 21284

4-channel module with relays designed to work with the Raspberry Pi Pico. It can switch signals up to 250 V AC and 7 A or 30 V DC and 10 A. SB Components 21178

Module with four 240V/2A relays controlled by 5V with a fuse triggered by a high state. modSSR-4CH-H

Module with SSR relay with a load of up to 3 A. It communicates via the USB interface and does not require additional power supply. Numato Lab SSRP20001-AC

Module with one 5 V relay with a maximum switching current of 10 A. It communicates via a USB interface and does not require additional power supply. Numato Lab NLRL1001-A

Module with 8 relays 12 V with a maximum switching current of 7 A. Numato Lab RL40004

The module offers 16 TTL-compatible GPIOs, 10 analog channels and individual I/O configuration, making it ideal for automation, DIY projects and advanced system engineering, with the possibility of remote control via standard network interfaces. Numato Lab NLETHGC016-HA

Industrial module with 32 relays. It uses communication via the RS485 interface and supports the Modbus RTU protocol. Waveshare Modbus RTU Relay 32CH