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    DigiKey
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4 Channel Relay Module Using External Power Supply
1Pcs Ac/Dc Power Supply 4 Channel Four-Way Relay Module
1Pcs Ac/Dc Power Supply 4 Channel Four-Way Relay Module
Walmart
$
12
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19
1Pcs Ac/Dc Power Supply 4 Channel Four-Way Relay Module
1Pcs Ac/Dc Power Supply 4 Channel Four-Way Relay Module
Walmart
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12
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19
4 Channel Relay Module 4-Channel Relay Control Board With Optocoupler. Relay Output 4 Way Relay
4 Channel Relay Module 4-Channel Relay Control Board With Optocoupler. Relay Output 4 Way Relay
AliExpress
$
3
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22
4 Channel Relay Module 4-Channel Relay Control Board With Optocoupler. Relay Output 4 Way Relay
4 Channel Relay Module 4-Channel Relay Control Board With Optocoupler. Relay Output 4 Way Relay
AliExpress
$
3
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22
Esp32 Four-Channel 30A Relay Module,DC7-28/5V Power Supply 4 Way 30A Esp32-Wroom-32E Relay Module,ESP32 Development Relay Board With LED Indicator
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Walmart
$
27
.
22
Esp32 Four-Channel 30A Relay Module,DC7-28/5V Power Supply 4 Way 30A Esp32-Wroom-32E Relay Module,ESP32 Development Relay Board With LED Indicator
Esp32 Four-Channel 30A Relay Module,DC7-28/5V Power Supply 4 Way 30A Esp32-Wroom-32E Relay Module,ESP32 Development Relay Board With LED Indicator
Walmart
$
27
.
22
With Optocoupler 4 Channel 4-Channel Relay Modules Relay Control Panel PLC Relay 5V Four Way Module
With Optocoupler 4 Channel 4-Channel Relay Modules Relay Control Panel PLC Relay 5V Four Way Module
Shopping FM
$
13
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75
With Optocoupler 4 Channel 4-Channel Relay Modules Relay Control Panel PLC Relay 5V Four Way Module
With Optocoupler 4 Channel 4-Channel Relay Modules Relay Control Panel PLC Relay 5V Four Way Module
Shopping FM
$
13
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75
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
Aliexpress
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33
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89
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
Aliexpress
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33
$
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89
Aooower 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Aooower 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Walmart
$
17
.
10
Aooower 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Aooower 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Walmart
$
17
.
10
4 Channel 5V Relay Shield Module, Four Way Relay Control Board Relay Expansion Board For Arduino UNO
4 Channel 5V Relay Shield Module, Four Way Relay Control Board Relay Expansion Board For Arduino UNO
AliExpress
$
6
.
20
4 Channel 5V Relay Shield Module, Four Way Relay Control Board Relay Expansion Board For Arduino UNO
4 Channel 5V Relay Shield Module, Four Way Relay Control Board Relay Expansion Board For Arduino UNO
AliExpress
$
6
.
20
4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Walmart
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30
4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Walmart
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30
Tizuqe 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Tizuqe 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Walmart
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52
Tizuqe 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Tizuqe 4 Channel Relays Module For PLC Automation Equipment Control Load Dc30v Ac250v 30A High Low Level Triggers Relays Board
Walmart
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52
4 Channel Relay Module, Send Serial Commands PCB 10A 250VAC Overcurrent Protection USB Relay Expansion Board Drive Free Intelligent Control For PC
4 Channel Relay Module, Send Serial Commands PCB 10A 250VAC Overcurrent Protection USB Relay Expansion Board Drive Free Intelligent Control For PC
The Retail Market
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4 Channel Relay Module, Send Serial Commands PCB 10A 250VAC Overcurrent Protection USB Relay Expansion Board Drive Free Intelligent Control For PC
4 Channel Relay Module, Send Serial Commands PCB 10A 250VAC Overcurrent Protection USB Relay Expansion Board Drive Free Intelligent Control For PC
The Retail Market
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30
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49
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5V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
5V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
Shopping FM
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14
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79
5V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
5V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
Shopping FM
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14
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79
4 Channel USB Control Relay Module 5V 12V 24V Smart Switch For PC Automation And Expansion Board
4 Channel USB Control Relay Module 5V 12V 24V Smart Switch For PC Automation And Expansion Board
Walmart
$
13
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97
4 Channel USB Control Relay Module 5V 12V 24V Smart Switch For PC Automation And Expansion Board
4 Channel USB Control Relay Module 5V 12V 24V Smart Switch For PC Automation And Expansion Board
Walmart
$
13
.
97
1-5PCS 4 Channel Relay Board AVR 51 PIC 5V 12V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module For Arduino
1-5PCS 4 Channel Relay Board AVR 51 PIC 5V 12V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module For Arduino
Aliexpress
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66
$
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31
1-5PCS 4 Channel Relay Board AVR 51 PIC 5V 12V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module For Arduino
1-5PCS 4 Channel Relay Board AVR 51 PIC 5V 12V 4-Channel Relay Module With Optocoupler Relay 4 Way Relay Module For Arduino
Aliexpress
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31
4-Way Channel Relay Module With Optocoupler, In Stock, 5V,12V,24V-Reliable
4-Way Channel Relay Module With Optocoupler, In Stock, 5V,12V,24V-Reliable
Walmart
$
8
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59
4-Way Channel Relay Module With Optocoupler, In Stock, 5V,12V,24V-Reliable
4-Way Channel Relay Module With Optocoupler, In Stock, 5V,12V,24V-Reliable
Walmart
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8
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59
4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level
4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level
eBay US
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20
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50
4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level
4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level
eBay US
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50
Arduino-Compatible ModulesRelay modules designed for seamless integration with Arduino boards, ideal for hobbyists and makers.
Raspberry Pi IntegrationModules optimized for Raspberry Pi GPIO control, perfect for automation and IoT projects.
Optocoupler-Isolated ModulesRelay modules with optocoupler isolation for enhanced safety and signal integrity.
Home Automation ReadyModules designed for controlling lights, appliances, and other home devices.
Industrial Control ModulesHeavy-duty relay modules suitable for industrial machinery and process control.
Compact Form FactorSpace-saving relay modules for projects with limited enclosure space.
Screw Terminal ConnectionsModules featuring screw terminals for secure and easy wiring.
Robotics ApplicationsRelay modules tailored for controlling motors, actuators, and sensors in robots.
Low Voltage TriggerModules that can be triggered with low voltage signals, ideal for microcontroller compatibility.
All products
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module
Banggood.com
$
7
.
49
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module
Banggood.com
$
7
.
49
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
AliExpress
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3
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82
$
4
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24
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
AliExpress
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3
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82
$
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24
4 Channel Relay Module 5V 12V 24V Board Shield With Optocoupler Isolation Support High And Low Level
4 Channel Relay Module 5V 12V 24V Board Shield With Optocoupler Isolation Support High And Low Level
Aliexpress
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08
$
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4 Channel Relay Module 5V 12V 24V Board Shield With Optocoupler Isolation Support High And Low Level
4 Channel Relay Module 5V 12V 24V Board Shield With Optocoupler Isolation Support High And Low Level
Aliexpress
$
5
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08
$
8
.
06
4 Channel Relay Module With RC 4 Channel Relay Module Infrared Remote Control Switch Set For Home Automation System
4 Channel Relay Module With RC 4 Channel Relay Module Infrared Remote Control Switch Set For Home Automation System
Walmart
$
12
.
23
4 Channel Relay Module With RC 4 Channel Relay Module Infrared Remote Control Switch Set For Home Automation System
4 Channel Relay Module With RC 4 Channel Relay Module Infrared Remote Control Switch Set For Home Automation System
Walmart
$
12
.
23
4-Channel Relay Module DC 5V/12V/24V High Low Level Triggers Smart Home PLC Automation Control 30A
4-Channel Relay Module DC 5V/12V/24V High Low Level Triggers Smart Home PLC Automation Control 30A
Aliexpress
$
6
$
8
.
11
4-Channel Relay Module DC 5V/12V/24V High Low Level Triggers Smart Home PLC Automation Control 30A
4-Channel Relay Module DC 5V/12V/24V High Low Level Triggers Smart Home PLC Automation Control 30A
Aliexpress
$
6
$
8
.
11
Lab 4 Relay Module 5V 4 Channels Relay Module Compatible With Arduino
Lab 4 Relay Module 5V 4 Channels Relay Module Compatible With Arduino
eBay
$
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39
$
27
.
99
Lab 4 Relay Module 5V 4 Channels Relay Module Compatible With Arduino
Lab 4 Relay Module 5V 4 Channels Relay Module Compatible With Arduino
eBay
$
22
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39
$
27
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99
4-Channel Relay Module
4-Channel Relay Module
Google RobotShop Merchant Center
$
10
.
90
4-Channel Relay Module
4-Channel Relay Module
Google RobotShop Merchant Center
$
10
.
90
Geekcreit 12V 4 Channel Relay Module For Arduino PIC ARM DSP AVR MSP430
Geekcreit 12V 4 Channel Relay Module For Arduino PIC ARM DSP AVR MSP430
Alexnld.com
$
17
.
99
Geekcreit 12V 4 Channel Relay Module For Arduino PIC ARM DSP AVR MSP430
Geekcreit 12V 4 Channel Relay Module For Arduino PIC ARM DSP AVR MSP430
Alexnld.com
$
17
.
99
4 Channel Relays Module For Automation Equipment Control Load Dc30v Ac250v High Low Levels Triggering Relays Board
4 Channel Relays Module For Automation Equipment Control Load Dc30v Ac250v High Low Levels Triggering Relays Board
Walmart
$
16
.
86
4 Channel Relays Module For Automation Equipment Control Load Dc30v Ac250v High Low Levels Triggering Relays Board
4 Channel Relays Module For Automation Equipment Control Load Dc30v Ac250v High Low Levels Triggering Relays Board
Walmart
$
16
.
86
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module For Arduino
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module For Arduino
Alexnld.com
$
18
.
99
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module For Arduino
DC12V 4 Channel Level Trigger Optocoupler Relay Module Power Supply Module For Arduino
Alexnld.com
$
18
.
99
4 Channel Relay Module DC 12V Relay 4 Channel Relay Board STM8S103F3 Microcontroller 7.8x7.7x1.8cm
4 Channel Relay Module DC 12V Relay 4 Channel Relay Board STM8S103F3 Microcontroller 7.8x7.7x1.8cm
AliExpress
$
12
.
44
4 Channel Relay Module DC 12V Relay 4 Channel Relay Board STM8S103F3 Microcontroller 7.8x7.7x1.8cm
4 Channel Relay Module DC 12V Relay 4 Channel Relay Board STM8S103F3 Microcontroller 7.8x7.7x1.8cm
AliExpress
$
12
.
44
Parts & Accessories 1Pcs/Lot 4 Channel/Way Relay Module 4-Channel Relay Control Board With Optocoupler Relay Output 4 Way Relay Control Board DIY
Parts & Accessories 1Pcs/Lot 4 Channel/Way Relay Module 4-Channel Relay Control Board With Optocoupler Relay Output 4 Way Relay Control Board DIY
warehousesoverstock
$
37
.
74
$
75
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48
Parts & Accessories 1Pcs/Lot 4 Channel/Way Relay Module 4-Channel Relay Control Board With Optocoupler Relay Output 4 Way Relay Control Board DIY
Parts & Accessories 1Pcs/Lot 4 Channel/Way Relay Module 4-Channel Relay Control Board With Optocoupler Relay Output 4 Way Relay Control Board DIY
warehousesoverstock
$
37
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74
$
75
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48
Sponsored
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    Progressive Automations 4 Channel Relay Module
    $11.99
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    Relay Board, Relay Module 4 Channel With Optocoupler Low Level Expansion Board For 5V/12V/24V(5V)
    $8.89
    Amazon.com
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    4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
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    Amazon.com
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    Relay 4 Channel Relay Module 30A Load Current With Optocoupler Isolation Supports High And Low Triger 5V 12Volt 24Volt Optional
    $14.05
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    Modern Day Muffler 40 Amp 4 Channel Relay Module-7566-4
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    Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power
    $14.99
    Amazon.com
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    NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
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    Amazon.com
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    DIANN 30A 4 Channel Relay Module 5V Relay Module Expansion Board High Low Level Trigger With With Optocoupler Isolation For PLC Automation Equipment
    $14.99
    Amazon.com
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    250V/10A 4 Channel Spdt Power Relay Module 5V Control Forarduino
    $7.69
    Walmart
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    Stinger Switchhub (SPXSH440) 100A 4-Channel High Current Solid State Relay System
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    NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug And Play Suitable For PC Smart Controller
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    Amazon.com
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    Dc 12V 4-Channel Relay Module Optocoupler For Arduino Pic Arm Avr Dsp
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    eBay
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    Relay 4 Channel Relay Module 30A Load Current With Optocoupler Isolation Supports High And Low Triger 5V 12Volt 24Volt Optional
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    Walmart
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    MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
    $21.09
    Amazon.com
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    4 Channel Relay Module, 4 Channel Relay Board 5 V Relay Module With Optocoupler High & Low Trigger Module For 5 V/12 V/2
    $26.80
    Everymarket INC
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    XIITIA 2Pcs 5V 4 Channel 2A Solid State Relay Module High Level Trigger Mini Durable DIY Relay With Fuse(5V 4 Channel)
    $13.99
    Amazon.com
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    Relay 4 Channel Relay Module 30A Load Current With Optocoupler Isolation Supports High And Low Triger 5V 12Volt 24Volt Optional
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    Walmart
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    4 Four Channel Relay Module Dc 5V + Optocoupler For Arduino Pic Arm
    $2.13
    eBay
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    Honcll 4 Channel 5V 12V 24V USB Relays Module Computer Intelligent For Automation
    $16.39
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    4-Channel Relay Module Industrial Automation High And Low Level
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