5V 8-Channel 10A PC USB Control Switch Relay Module Free Drive Programmable Computer Control Computer USB Control Switch Driver PC Intelligent Controller (5V 8-Channel)
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5V 8-Channel 10A PC USB Control Switch Relay Module Free Drive Programmable Computer Control Computer USB Control Switch Driver PC Intelligent Controller (5V 8-Channel)
This USB controlled relay module allows simple ON/OFF switching of electrical devices and can be used for projects like robotics and home automation.
5V 8-Channel 10A PC USB Control Switch Relay Module Free Drive Programmable Computer Control Computer USB Control Switch Driver PC Intelligent Controller (5V 8-Channel)
Número do item: 19344657

5V 8-Channel 10A PC USB Control Switch Relay Module Free Drive Programmable Computer Control Computer USB Control Switch Driver PC Intelligent

Número do item: 19344657

R$ 209

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

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Peça agora e receba por volta de Monday, Julho 27
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This USB controlled relay module allows simple ON/OFF switching of electrical devices and can be used for projects like robotics and home automation.
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Destaques do Produto

Easy Installation
Plug and play design eliminates the need for additional drivers, making installation hassle-free for users looking to control devices effortlessly.
Versatile Control
4-channel capability allows simultaneous management of multiple devices, providing flexibility and expanded functionality tailored for various applications.
Reliable Performance
Designed to operate at 12V, this relay module ensures consistent and dependable performance, essential for projects requiring durability and precision.

Detalhes do produto

Shop the high-quality KNACRO 5V 2 Channel USB Control Switch Relay Module at Ubuy Brasil. Control doors and windows, automate your home, and more. Free download of the app available!
Contact TypeNormally Closed
Current Rating10 Amps
Operation ModeAutomatic
Coil Voltage5 Volts
Contact Current Rating10 Amps
Maximum Switching Current10 Amps
Brand NameKNACRO
UPC736364878220
Part NumberUSB Relay Module
ModelUSB Relay Module
ManufacturerKNACRO
BrandKNACRO
Item Weight0.3 lbs (140 grams)

Para quem é indicado?

Suitable For
  • DIY Electronics Hobbyists

    Ideal for enthusiasts creating automated systems, as it simplifies control of multiple devices with minimal effort.

  • Home Automation Projects

    Perfect for those integrating smart home features, allowing users to manage appliances conveniently with a PC.

  • Small Scale Robotics

    Useful for robotics projects, providing an easy way to control multiple outputs with simple USB connection.

Not Suitable For
  • Higher Voltage Applications

    Not suitable for users needing to control devices requiring voltages above 12V or higher current loads.

DESCRIÇÃO DO PRODUTO

5V 8-Channel 10A PC USB Control Switch Relay Module Free Drive Programmable Computer Control Computer USB Control Switch Driver PC Intelligent Controller (5V 8-Channel)

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Perguntas e Respostas do cliente

  • pergunta: What is a 4-Channel 12V USB Control Switch Relay Module?

    responda: A 4-Channel 12V USB Control Switch Relay Module is an electronic device that allows you to control multiple appliances or devices through a single USB connection. This module features four independent relay channels, enabling you to switch on/off various devices like lights, fans, or even complex systems like home automation setups. It operates at 12V and is designed for direct connection to a PC without needing additional drivers. This makes it ideal for users looking to integrate simple control systems into their projects or standard computer operations.
  • pergunta: How do you connect the 4-Channel relay module to a PC?

    responda: To connect the 4-Channel relay module to your PC, simply plug the USB connector into an available USB port on your computer. The module is designed to be plug and play, meaning it will be automatically recognized by your system. From there, you can use software or scripts to control the relay's functions based on your project requirements. This straightforward setup is especially beneficial for anyone looking to control devices in home automation or prototype environments, without needing advanced technical skills.
  • pergunta: Is a driver necessary to use the 4-Channel relay module?

    responda: No, a driver is not necessary for the 4-Channel 12V USB Control Switch Relay Module. It is designed for easy, plug-and-play functionality, allowing users to connect it directly to their PC without additional software installations. This feature eliminates barriers for users who may not have technical expertise, making it a great option for both hobbyists and professionals in areas such as robotics or automation. Its simplicity ensures you can focus more on your projects rather than technical setup.
  • pergunta: What types of devices can I control with this relay module?

    responda: With the 4-Channel relay module, you can control a wide variety of devices, including lights, fans, motors, and other electrical appliances up to 10A. This versatility makes it suitable for home automation projects, remote control applications, or educational purposes in electronics. For example, if you're working on a DIY smart home project, you can use this module to manage lighting systems or automate the operation of household appliances, enhancing both convenience and functionality.
  • pergunta: What are the power requirements for the relay module?

    responda: The 4-Channel relay module operates on a 12V DC power supply. It is crucial to ensure that the power supply you use can provide sufficient current for the intended load of the devices you plan to control. Typically, the module can handle devices drawing up to 10A for each channel, allowing for efficient operation in various applications. This specification is particularly relevant for users implementing multitask control over multiple devices simultaneously while maintaining reliability.
  • pergunta: Can this relay module be used in a microcontroller project?

    responda: Yes, the 4-Channel relay module is suitable for use in various microcontroller projects, such as those involving Arduino or Raspberry Pi. Its simple USB connection allows you to easily integrate it into your existing setup, facilitating the control of multiple devices through code. By incorporating this module into your microcontroller project, you can create sophisticated systems, such as automated lighting or temperature control based on sensor inputs, promoting an engaging development experience.
  • pergunta: What is the max load capacity of each relay channel?

    responda: Each relay channel on the 4-Channel relay module can typically handle a maximum load of 10A at 250VAC or 30VDC. This high load capacity makes it suitable for controlling a variety of household and industrial appliances. Therefore, you can confidently use it for tasks like turning on/off larger devices such as refrigerators or heating systems, making it a key component in any high-power control project.
  • pergunta: Is there a software requirement for programming the relay module?

    responda: The 4-Channel relay module does not require any specific software to operate when connected via USB. However, to programmatically control the relays, you may need to use scripting or coding languages compatible with your PC’s operating system, like Python or C++. This opens up possibilities for developing custom automation scripts or integrating the module with various applications. Thus, users looking to automate their environment can easily access various resources and libraries online for guidance.
  • pergunta: What are potential applications for this relay module?

    responda: Potential applications for the 4-Channel relay module include home automation systems, remote control of appliances, and educational projects involving electronics. You can use it to automate garden watering systems or develop a remote-controlled lighting setup, significantly enhancing your day-to-day convenience. Its versatility allows it to fit into various scenarios where remote switching is necessary, making it a valuable tool for both hobbyists and professionals alike.
  • pergunta: Where can I buy the 4-Channel 12V USB Control Switch Relay Module?

    responda: You can purchase the 4-Channel 12V USB Control Switch Relay Module from Ubuy in Brazil. Ubuy offers a diverse range of electronic products, ensuring that you can find exactly what you need. With their user-friendly interface and convenient purchasing options, Ubuy is a great choice for acquiring this relay module for your projects.

KNACRO Selector Switch Boxes Editorial Review

The KNACRO USB relay is based on the ATtiny45 chip and comes with a GUI app and CommandApp_USBRelay.exe enabling command prompt control. The product also works with Linux using the "usbrelay" command from the command line. The set up is easy and works straight out the box. It comes in 5V 2 and 4 port versions however, this product cannot be used in multiples on one system because the ID is the same so if you want to have different channels, you will have to buy a four-channel one. Additionally, it does not come with a USB cable and although the reviews are mixed most are positive with the open-source design being praised for its low cost.

Comentários e avaliações dos clientes

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Prós

  • Easy to set up
  • Low cost
  • Open-source design
  • Works with Linux

Contras

  • The ID is the same; cannot be used in multiples on one system

Platform Trust & Buyer Confidence

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MT
Mohd
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“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
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“Accurate delivery timing given”

16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
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Leila
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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R$ 209

Peça agora e receba por volta de Monday, Julho 27

QTY:

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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Nossos principais parceiros logísticos
  • fedex
  • dhl
A entrega internacional mais rápida

Características e benefícios

  • Control devices such as home lights, DC motors, and solenoids
  • Each board requires one USB port
  • Relay specification: 10A 250VAC/10A 125VAC/10A 30VDC/10A 28VDC
  • Supports Win XP/Win7/Win8 32-bit systems
  • Size: 56.64mm / 24.75mm / 16mm
  • Uses HID technology, no drivers required

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