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"usb switch box"
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
