USB-A VOLTAGE AND CURRENT TESTER KIT WITH LCD SCREEN USB 3.1

Measures, tests and monitors the voltage and amp capacity of your computer or laptop's USB ports and any connected USB devices Features Determine Volt and Amp Capacity of Your USB-A Cable, Charger or Port in Real Time You need to know when your USB devices are receiving an acceptable and proper charge. You also need to know the power requirements of your PC, laptop, tablet, MacBook, Ultrabook or Chromebook, so you can determine which USB cables, hubs and chargers work most efficiency with them. This USB-A voltage/current tester connects between the USB source you wish to test and a connected ...