USB Control Switch 2-Channel 5V Relay Module - Red
This module uses HID technology�� high quality�� no need use driver�� download data come with inside the application�� play and plug. Support Win7�� XP 32 system. Module description: USB connector�� stable. Using imported high-performance USB control chip. Use SongLe relay. Military level PCB production. 4-channel�� 8-channel power connector�� after aonnecting the power�� even if plug out the USB or turn off the computer�� relay can still keep setting condition. Fixed hole size is 3mm�� fixed hole central moment: 52.2mm x 36.6.
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