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"usb switch box"
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AJMRTC 1PCS USB Mini Discharge Load Resistor with Switch, 1A Green LED / 2A Red LED, Adjustable USB Dummy Load Tester for USB Power Bank, Charger, Cable Voltage Current Testing
Limited time offer, ends 11/25
$11.00
Free Shipping
AJMRTC USB Electronic Load Tester, 3 Adjustable Current Modes 5V Dummy Load Resistor with Switch, Portable USB Discharge Load Resistor for Testing Power Bank, USB Charger, Cable Output Performance
Limited time offer, ends 11/25
$11.48
Free Shipping
AJMRTC HID Drive-Free USB 1 Channel 5V Relay Module, One-Channel USB Relay Switch, Control Relay ON/OFF Directly via Computer, No Extra Driver Needed for PC Automation Control
Limited time offer, ends 11/25
$12.44
Free Shipping
AJMRTC DC 5V USB Relay Module, 1CH 1 Channel Programmable Computer Control Relay Board, USB Controlled Switch Relay for Smart Home Automation and Electronic Control Projects
Limited time offer, ends 11/25
$13.77
Free Shipping
AJMRTC 1 Channel 5V USB Relay Module, Programmable Computer Control USB Relay Switch Board, USB Powered Relay Controller for Home Automation Industrial Equipment On Off Control
Limited time offer, ends 11/25
$15.87
Free Shipping
