2 Channel Solid State Relay Controller Board - module with 2 SSR AC relays

8-channel module with relays designed for minicomputers Raspberry Pi. It allows you to control devices powered by high voltage. Waveshare RPi Relay Board (B)

Module with 8 SSR relays with a load of up to 3 A. The board is equipped with the ULN2003 system and communicates via a digital interface. Numato Lab SSRC80001-DC

Pololu 5425 offers silent, reliable operation when switching currents up to 10 A and voltages up to 30 V, providing galvanic isolation and full configurability of RC control parameters. The version without soldered connectors allows easy adaptation to individual mounting needs in RC and automation projects.

The 5V relay module with opto-isolation allows you to safely control loads up to 10A at voltages up to 250V AC or 30V DC, working with microcontroller platforms such as Arduino or Raspberry Pi

8-channel module with relays, designed to work with the Raspberry Pi. It can switch 250VAC/7A or 30VDC/10A signals. With LCD 4,3" display. SB Components 21871

A versatile module that allows you to control higher voltage devices such as 12V LED strips while simultaneously powering a microcontroller from 3.3V. The module integrates an LMR14203 converter and an N-channel MOSFET (PSMN7R0-100BS), allowing you to power the board at up to 12V and drive loads up to 10A, with additional protection features and LED indicators, making it ideal for projects requiring efficient power control. SparkFun COM-23979

Module with 2 5 V relays with a maximum switching current of 2 A. It communicates via the USB interface and does not require an additional power supply. Numato Lab USBPOWRL001

Module with 16 relays and 8 IO pins and 8 analog inputs. It communicates via the RS485 or USB interface and supports the Modbus RTU protocol. Numato Lab NLRE1002-A

Module with 4 SSR relays with a load of up to 3 A. The board communicates via the Ethernet interface. Numato Lab 4ETHSSR001-DC

2-channel module with relays, designed to work with the Raspberry Pi. It can switch 250VAC/7A or 30VDC/10A signals. SB Components 14088

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

Module with 4 5 V relays with a maximum switching current of 2 A. It communicates via the USB interface and does not require an additional power supply. Enclosure included. Numato Lab USBPOWRL004E

4 route MOSFET switch module V2.0, IRF540, RoHS

Crowtail – Dry-Reed Relay 2.0 is a compact reed relay with hermetically sealed contacts, providing fast and reliable switching. Used in automation systems, microelectronics, and detection systems requiring precision and durability.

4-channel switch module with a maximum voltage of 16 V and a current of 2 A based on a MOSFET transistor. It is controlled by digital inputs. It is equipped with a screw connection and status LEDs. Adafruit 5757

The module with the TPL5110 timer, which can generate a signal with an adjustable period from 100 ms to 2 h. It also works well as an external Watchdog Timer. Adafruit 3435