$50
Price includes
Import Duties and Taxes. Free shipping available
4-Channel 12V USB Control Switch Relay Module No Driver Required Plug and Play PC Smart Controller
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About the item
- The module uses HID technology, without any driver, plug and play. Support WIN7, XP 32-bit, 64-bit system, easy to use simple. (Can provide development library, if you need, please contact us)..
- Onboard square USB interface, stable connection; use of high-performance USB control chip; use dedicated relay driver chip ULN2803, relay work more stable;.
- Power outlet and terminal, two access power mode convenient and flexible. After connecting the power, even if the computer shut down or USB from the computer pull out, the relay can also maintain the set state..
- PCB size: 71.6mm * 65.3mm, fixed hole size: 3mm, fixed hole center moment: 67.4mm * 61.3mm..
- Note: Due to the characteristics of the USB protocol, this module is not suitable for use where electromagnetic interference is large! If you want to use, please do electromagnetic shielding measures..
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Frequently Asked Questions About 4-Channel 12V USB Control Switch Relay Module No Driver Required Plug and Play PC Smart Controller in Grenada
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