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Best Choice ECSiNG 
ECSiNG 10PCS 5-Pin Terminals 5VDC Power Relay PC Board Relay for Industrial Control Automotive Electronics Safety System Premium Quality and Sealed Design: Constructed from high-quality materials, this relay features a waterproof and dustpro10% Off Homyl 
HOMYL DC 12V 8-Channel USB Relay Module – PC-Controlled HID Relay Board for Home Automation Device Switching [Multi-Channel Relay Board] Equipped with 8 relays SRD-05VDC-SL-C, allowing control of multiple circuits through a singlBest Value Qezodsx 
Qezodsx One Channel Relay - Development Board Single Relay Module DC 7-60V Power Supply for Home Appliance Accessories 1. On-board and stable --32E module, capacity 4M Flash;CHENBO 
4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler for Arduino The module uses genuine quality relay, normally open interfacesMingzhe 
USB Relay Module High Performance MCU PC USB Smart Control Switch Jog Self Locking [High-performance Microcontroller Chips] - Equipped with onboard high-performance microcontroller chips for efficient anSG Store 
SG Store 10pcs PCB Relay Socket 40A 5Pin Connector Suitable for Plug-in Relay Control Circuit Product size: The product is 27mm long, 24mm wide and 14.5mm wide. Manual measurements, please allow slight errors.KBOLAE 
40A 5 Pin SPDT PCB Board Mount Relay Socket Connector for Terminals PCB Relay Sockets with built in 5pin Terminals.JBtek JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM Equiped with high-current relay, AC250V 10A ; DC30V 10AXiuxin Xiuxin 2pcs 5V 8 Channel Relay Module Board for Arduino PIC AVR DSP ARM 2pcs/lot 8 Channel relay module board, Working voltage: 5VDWEII DWEII 5pcs 5V 2 Channel 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with R3 MEGA 2560 Standard interface that can be controlled directly by microcontroller (Compatible with Arduino, 8051, AVR, PIC, DSP, ARMOVAQUIXI OVAQUIXI DC 36V USB Control Switch Relay Module Easy-to-Use PC Relay Module Expansion Board for Precise Computer Control [PLUG-AND-PLAY DESIGN] Enjoy a hassle- setup with the onboard control chip for easy use and convenience.LT Easiyl LT Easiyl 4 Pcs Circuit Board 2 Channel Optocoupler Isolation Board Module PC817 3.6-30V Fit for Sensors Actuators Power This product is a 2-channel isolation module based on PC817 optocoupler, which can achieve signal isolation transmissionFafeicy PWM Driver Module 4 Wire PCB Wide Voltage Temperature Controller Relay Switch Board with Probe 12V for PC Fan SPECIFICATION: The working temperature of this temperature detection control module is in ‑25℃‑85℃, the working humidityECSiNG ECSiNG SRD-05VDC-SL-C 5-Pin Terminals 5 VDC Power Relay PC Board Relay for Industrial Control Automotive Electronics Sec PREMIUM QUALITY & SEALED DESIGN Made of high quality materials, this relay features a waterproof and dustproof seal thatECSiNG ECSiNG SRD-09VDC-SL-C 5-Pin Terminals 9 VDC Power Relay PC Board Relay for Industrial Control Automotive Electronics Sec PREMIUM QUALITY & SEALED DESIGN Made of high quality materials, this relay features a waterproof and dustproof seal thatAOICRIE AOICRIE 5Pcs DC 12V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally opeNOYITO NOYITO 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch (2-Channel Micro USB) NOYITO 2-Channel Micro USB Relay Module is equipped with a stable USB to serial port chip and a microcontroller. It canTiiyee 4 Channel Optocoupler Relay Module, Board High and Low Trigger Module with Isolation Support High/Low Level for Automati High and Low Level Controllable: Optocoupler relay module with a jumper cap, you can choose a low level control or a higCasalytics G8P-1A4P Fully-Sealed PCB Relay (Set of 2) 12VDC 30A - 4Pins 30A 250VAC Relay for PC Board or Panel-Mounted Applications Fully-Sealed PCB Relay: The G8P-1A4P relay is fully-sealed, providing excellent protection against dust, moisture, and oElectronics-Salon Electronics-Salon RPi Power Relay Board Expansion Module, for Raspberry Pi A+ B+ 2B 3B. Supports Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B, the RPi Relay Board gives your Pi the ability to control high voltage/highKUNLONGSKY AC 220V/DC 5-30V Power Supply WiFi Bluetooth BLE Four-Way Relay Module - Development Board 1/O Port 2: Onboard and stable --32E module, large-capacity 4M FlashEjoyous Ejoyous Berm Relay Module Board PC Flame Retardant Relay Module G6B 4BND DC 24V Coil 5A Sealed Output with Zero Turn On [Model Fit]Relay Module Board model G6B 4BND with DC 24V coil and DC working voltage. Suitable for replacing an old or dDWEII DWEII 10 PCS 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver CurrentYjcnelcr Yjcnelcr 4 Channel 5V 12V 24V Relay Board USB Connection Intelligent Home Relay Controller for PC Automation Projects Our 4-Channel 5V 12V 24V USB Control Switching Relay Module allows for seamless automation. Equipped with stable on-boarLrocaoai 2X 8Ch Input/Output Digital Switch TTL LvTTL CMOS RS485 IO Control Module Modbus Rtu Board for PLC Relay(with Terminal) 1 Working voltage: DC 12V (6-24V)Yjcnelcr Yjcnelcr 4 Channel 5V 12V 24V Relay Board USB Connection Intelligent Home Relay Controller for PC Automation Projects Our 4-Channel 5V 12V 24V USB Control Switching Relay Module allows for seamless automation. Equipped with stable on-boarMiZOELEC 5V 2-CH 2 Channel RS232 Serial Control Relay Switch Board SCM PC Relays 5V 2-CH 2 Channel RS232 Serial Control Relay Switch Board SCM PC RelaysYjcnelcr Yjcnelcr 4 Channel 5V 12V 24V Relay Board USB Connection Intelligent Home Relay Controller for PC Automation Projects Our 4-Channel 5V 12V 24V USB Control Switching Relay Module allows for seamless automation. Equipped with stable on-boarWMYCONGCONG WMYCONGCONG 5 PCS 2 Channel 12V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Raspberr 12V 2 channel relay module, can be controlled by any 12V digital output from your microcontroller.QIEIEI QIEIEI ULN2803 5V 12V 24V 4CH USB Control Relay Module Smart Switching for PC Automation and Expansion Board Hassle-free automation with our 4 Channel 5V 12V 24V USB Control Switching Relay Module. Features stable USB and high coTizuqe USB 4 Channel 5V 12V 24V Relays Board Intelligent Switching Controller ULN2803 for PC Automation Tasks With double power access option through board power socket, this PC Relays module expansion board provides versatiled coTizuqe USB 4 Channel 5V 12V 24V Relays Board Intelligent Switching Controller ULN2803 for PC Automation Tasks With double power access option through board power socket, this PC Relays module expansion board provides versatiled cosainsmart SainSmart 8-Channel Relay Module 5V 8-Channel Relay interface board, and each one needs 15-20mA Driver CurrentTizuqe USB 4 Channel 5V 12V 24V Relays Board Intelligent Switching Controller ULN2803 for PC Automation Tasks With double power access option through board power socket, this PC Relays module expansion board provides versatiled coDenash Denash 2 Pcs Timer Relay Module, Infinite Cycle Delay Switch Board 1s to 15 Mins, with Microcontroller, for Machine Test DUAL OPERATION MODES FOR VERSATILE CONTROL: Easily switch between single and cycle modes by adjusting the jumper. In sinelechawk I2C Qwiic Cable Kit Stemma QT Wire for SparkFun Development Boards Sensor Board Breakout Breadboard 4 Pin Sh1.0 Connecto Includes 12 pcs cables of various lengths and styles (10cm,20cm, 30cm, 50cm. SH1.0 connector and breadboard Jumper and FSwpeet Swpeet 450Pcs Computer Screws Motherboard Standoffs Assortment Kit for Mainboard, Hard Drive, Fan, Power Supply DIY PC I 💯 【 What You Get 】------ In this kit, You will get 450Pcs Computer Screws Motherboard Standoffs Screws Assortment Kit,QIEIEI QIEI 4 Channel USB Control Relay Module ULN2803 5V 12V 24V Intelligent Switching for PC Automation and Expansion Board Seamlessly automate with our 4 channel 5V 12V 24V USB control switch relay module. Stable onboard USB and high control cZopsc Zopsc 12V 8-Channel USB Relay Controller Switch Module, PC Smart Computer Relay Board, USB Switch for Home Automation In Smart USB Relay Control for PC & Automation: This 12V 8-channel USB relay switch module connects directly to your computSnblzhef Snblzhef DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial Port Remote Control Switch for Moto Four-channel serial relay:Snblzhef Snblzhef DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial Port Remote Control Switch for Moto Four-channel serial relay:Phefop Phefop 8 Channel USB Relay Module, 5V PC Control Switch Board with ULN2803 Driver, Power Off Memory, NC COM NO Wiring, f 【8 Channel Control】This usb relay module provides 8 channel switching through a 5V computer controlled board. It fits PCSpicurity 2PCS DC 12V 8-Channel USB Relay PC Computer Control 2PCS DC 12V 8-Channel USB Relay PC Computer ControlClisted Clisted 1 PCS Relay Module Board with Optocoupler Self-Locking Timing Relay DC 8V-36V 4 Channel 3. DC 8V-36V wide voltage input, with power supply anti-reverse connection function, not damage the module due to wrongDiyeeni Diyeeni USB Switch Module, 2-Channel 5V Computer USB Smart Switch Controller, PC Relay Drive Module Expansion Board, Rel Onboard USB interface, stable connection.Reland Sun 4-Way 5V Relay Module Control Expansion Board Standard shield interfaces and shapes.FERCAISH PCB Relay Fully Sealed 30A 250VAC (F01 Error Correct) Interchangeable Relay 855AP-1A-C 24V Dryer Motor F01 Error Code Re REPLACEABLE RELAY: 855AP-1A-C 24VDC This relay can solve the F01 error code on most dryer outlets. Replaces G8P-1A4P-ACDT TOOYFUL USB Eight Channel 8 Relay Switch Output Module Board PC Computer Controller Using /OFF switching electrical devices for , , solenoids etc.Sorandy Sorandy USB Control 2NO 2NC Relay Module, Plug and Play, Automatic Operation, 0.5A Max Switching Current, Smart Home PC MULTIFUNCTIONAL: The LCUS drive- USB computer drive- control switch relay module is an efficient and intelligent controlPodazz 5 PCS 1 Channel Relay Module with Optocoupler Relay Control Board Low Level Trigger Relay Shield Module Indicator Light 【High Performance Isolation】 Podazz 5V relay module features advanced patch photocoupler isolation, ensuring strong drivJelquix Jelquix USB Smart Relay Controller Module for PC, Grade 5V 2-Channel PC Relay Drive Board for XP 32/64-bit System [HIGH PERFORMANCE USB CONTROL CHIP] Utilizes an imported high-performance USB control chip for reliable performance.Dcnhfdsw Dcnhfdsw DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial Port Remote Control Switch for Moto 2. Standby current (all relays closed) 18MA, 1-way relay "open" 50MA, 2-way relay "open" 81MA, 3-way relay "open" 110MA,MiZOELEC 1Pcs DC 5V 10A 8 Channel Micro USB Relay Indicator Board Module PC Upper Computer ICSE014A Software Control 1Pcs DC 5V 10A 8 Channel Micro USB Relay Indicator Board Module PC Upper Computer ICSE014A Software ControlSpacnana Spacnana USB Relay Module 2 Channel 5V Relay Board 2CH USB Controlled Module with High Performance Control Chip for Comp [EFFORTLESS PLUG & PLAY CONTROL] This USB controlled relay module eliminates complicated driver installations. 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It supports cLiyeehao MCU PC USB Control Relay Board, High-Performance Microcontroller Chips USB Control Relay Module, for Home Industry 100% brand new and high quality.Dcnhfdsw Dcnhfdsw 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch for PLC Smart Home Garage Door Car Farm Motor for Standby current 16MA.Dorhea Dorhea ESP8266 ESP-12F NodeMcu D1 Module WeMos Lua 4M Bytes WLAN WiFi Internet Development Board + Relay Shield + 2.54mm The esp8266 module is 11 digital input / output pins, all pins with interrupt / PWM / I2C / support 1 line (except D0);sb components SB Components Ardi Relay HAT for UNO R3 Development Board Relay Shield Expansion for Arduino Uno, Mega, ArdiPi & Ardi32 The Ardi Relay Shield is a versatile 4-channel optoisolated relay board that enhances your Arduino projects, allowing yoSorandy DC 36V USB Control Switch, Relay Module Drive, Computer PC Control, Relay Module Expansion Board, WiFi Wireless Smart Sw MULTIFUNCTIONAL: Support for a variety of operating systems and programming languages, a wide range of applications, higeletechsup DC 12V 24V 2Ch DB9 UART Relay Module RS232 Serial Port Switch Board for PC PLC Motor LED PTZ (24V) Brand Name : eletechsupeletechsup DC 12V 24V 2Ch DB9 UART Relay Module RS232 Serial Port Switch Board for PC PLC Motor LED PTZ (12V) Brand Name : eletechsupEujgoov Eujgoov Audio Input Switch Module, Compact Relay Switch Board, 4 Way Audio Selector for Home Theater, PC and TV [Four Inputs and One Output] Supports switching between four audio sources to one output seamlessly.Lrocaoai 2X 24 Pins ATX Benchtop Board Computer Pc Power Supply Breakout Adapter Module 4. With output protection fuse,four groups correspond to four road output.Acxico Acxico 2 pcs ESP8266 ESP-01S + 5V WiFi Relay Module Smart Home Remote Control Unlock Board This module uses genuine relays and normally open interfaces. High stability and low power consumption.JESSINIE JESSINIE 2Pcs 1 Channel Switch Relay Module Modbus Rtu Switching Input Output Relays Board with Anti-Reverse Connection On-board mature and stable 8bit MCU and MAX485 level conversion chipsAnnadue Annadue Relay Module Relay Switch, 2 Channel 5V Computer Usb Smart Switch Controller Pc Relay Drive Module Expansion Boa Onboard square USB interface, stable connection.MHCOZY MHCOZY 1 Channel USB 5V AC/DC 7-32V Smart WiFi Wireless Dry Contact Relay Switch Module,Tuya Smart Life app Remote Contr WIFI app remote,Works with tuya/smart life app,doesn't support ewelink app easy to setup with low voltage 5V 12V 32V,dryDcnhfdsw Dcnhfdsw DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial Port Remote Control Switch for Moto 2. Standby current (all relays closed) 18MA, 1-way relay "open" 50MA, 2-way relay "open" 81MA, 3-way relay "open" 110MA,Eujgoov 2 Channel DC Relay Module Relay Switch Board, Serial Relay Switch Relay to RS232,2 Channel Relay Switch Module Serial Po Stable and :The relay switch board with capacitor filter circuit, which has improved stability.OVAQUIXI OVAQUIXI USB Control Switch Relay Module Plug and Play PC Control Relay Module Expansion Board for Reliable Electrical C [SIMPLE AND EFFICIENT] Utilize the USB Control Switch Relay Module effortlessly with its drive- operation and plug-and-pEosnow Eosnow 4 Channel 5V Computer USB Control Switch Relay Module, USB Relay Board with Drive Free Control Chip, for PC Intel PROTECTION FUNCTION:USB Relay Module includes built-in overcurrent protection and relay diode freewheeling protection, eHiSport HiSport G8P-1A4P Fully-Sealed PCB Relay 30A 250VAC 12VDC 4-Pin SPST Compatible with PC Board or Panel-Mounted Applicatio 30A High-Current SPST Relay: Features a robust 30A rating and SPST configuration for demanding circuits (cooling fans, HDcnhfdsw Dcnhfdsw DC 12V 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch for PLC Smart Home Garage Door Car Alarm Fa DC 12V power supply (voltage range 9-13V).Dcnhfdsw Dcnhfdsw 2X DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial Port Remote Control Switch 3. RS232 DB9 female interfaceHiSport HiSport T9AS1D12-12 Power Relay 12VDC 30A SPST-NO PCB Compatible with PC Board or Panel-Mounted Applications High-Capacity Power Relay: Handles demanding loads up to 30A @ 240VAC with a 12VDC coil, featuring a reliable SPST-NO (SWaveshare Waveshare Relay Board Compatible with Raspberry Pi to Control High Voltage/High Current Devices The Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home applianWlpdkptg Wlpdkptg DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial Port Remote Control Switch for Moto 2. Standby current (all relays closed) 18MA, 1-way relay "open" 50MA, 2-way relay "open" 81MA, 3-way relay "open" 110MA,Domary 4 Channel Relay Module 5V USB Expansion Board for PC Control Switch [User-friendly Design] With the ability to control the opening and closing of the relays using serial debugging softwareOdorkle Odorkle 4 Channel Relay Module, 5V 4 Channel Relay Module, 5V PC Control Switch Expansion Board USB with Overcurrent EQUIPPED WITH CHIP AND CONTROLLER:4 channel micro USB relay module has stable USB to serial port chip and microcontrolleEACTEL EACTEL One Channel Relay ESP32-WROOM Development Board Single Relay Module DC 7-60V Power Supply for Home Appliance Acce 2. The I/O port and UART program download port of the ESP32 module are all led out to facilitate secondary development;HDPQNHWA 8DI-8DO Industrial-Grade Multi-Function USB Relay Board PC UART COM Switch Module with Input Indicator Light DC 12V 24V( ApplicationsJTKOKI 12V 4 Channel RS232 Relay Board PC USB UART DB9 Interface Relay Module Serial Port Remote Control Switch for Motor Garag GeneratorsHDPQNHWA 8DI-8DO Industrial-Grade Multi-Function USB Relay Board PC UART COM Switch Module with Input Indicator Light DC 12V 24V( ApplicationsDaXuTech Wireless Remote Switch,Smart Home 433Mhz DC 12V 1CH Wireless Remote Switch Relay Receiver Transmitter Universal Remote C 💡-Very convenient to use, simple wiring diagram connection way.OONO RPi PoE Relay Board Module for Raspberry Pi 3B+ 4B Supports Raspberry Pi 3B+ 4B, the RPi Relay Board gives your Pi the ability to control high voltage/high current devicesJTKOKI 12V 4 Channel RS232 Relay Board PC USB UART DB9 Interface Relay Module Serial Port Remote Control Switch for Motor Garag GeneratorsPqredg Pqredg 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch for PLC Smart Home Garage Door Car Farm Motor Standby current 16MA.Dcnhfdsw Dcnhfdsw 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch for PLC Smart Home Garage Door Car Farm Motor for Relay load voltage: DC 1-100V or AC85-265V.Ganbui Ganbui 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch for PLC Smart Home Garage Door Car Farm Motor RS232 DB9 female interface.RIZGHWOY RIZGHWOY USB Control Switch Relay Module Efficient Computer PC Control Relay Module Expansion Board for High Precision E [DRIVE- OPERATION] The USB Control Switch Relay Module features an onboard control chip, making it plug and play with noAumotop Aumotop Drive Free USB Relay Expansion Board, 4 Channel Relay Module with Serial Control, Stable Controller, Long Servic [PLUG-AND-PLAY SETUP] Onboard control chip for hassle-free installation and useDcnhfdsw Dcnhfdsw 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch for PLC Smart Home Garage Door Car Farm Motor for Read, open, close, self-lock, inching, interlock 6 instructions, can meet most industrial control occasions.NDNCZDHC NDNCZDHC 24V DC Relay, 15 Channel ABS RS485 RS232 PLC DO PC UART Serial Switch Board Relay Module for Industrial Bluetooth Relay:This control unit offers six working modes including open, close, momentary, self lock, interlock and deEjoyous Ejoyous Programmable Controller Board, 24V PLC Industrial Control Board with 32 Bit CPU, TTL Interface, Online Monitorin [PLC Compatibility]Programmable controller board designed for FX2N series. Supports direct download with GXDeveloper orMingzhe 8-Channel 12VDC Type B USB Relay Board Module Controller Automation Robotics for Robotics Labs [Efficient Relay Control] When connected to a pc and restarted, the relays toggle multiple times due to the ftdi chip'sHaloVerde HaloVerde USB Control Relay Board with Onboard Chip and LED Status Indicators, a Serial Port Control Relay Module with J ADVANCED CHIPSET: Incorporates a high performance MCU and a USB control chip to manage commands and ensure stable connec