USB-A Voltage & Current Tester Kit

T050-001-USB-A - Tripp Lite (Tripp Lite)

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 efficiently with them. This USB-A voltage/current tester connects between the USB source you wish to test and a connected USB device to determine the voltage and amperage.