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Small rectangular USB tester with digital display and connectors

Ruth's sister

Ruth's sister KWS-MX18 USB Tester internal power cable

SKU CH-4AEA-CKTAT

Measures USB voltage and current up to 18 W for charger and power-bank testing

  • Measures voltage and current on USB ports
  • Real-time power monitoring for chargers and power banks
  • Compact DC digital voltmeter and ammeter in one
  • Model KWS-MX18 designed for internal cable installation

Internal USB power tester with 18 AWG wiring

The KWS-MX18 is a compact DC voltmeter and ammeter that plugs inline on a USB power cable to show real-time voltage and current draw. It suits technicians, hobbyists and anyone verifying charger output or cable quality without opening a bench supply.

Single inline measurement point for USB-A power

The tester reads only the VBUS and GND conductors of a standard USB-A connection, so it cannot measure data-line signalling, USB-C Power Delivery negotiation or multi-port hub totals. Buyers needing protocol-level analysis or Type-C voltage profiles will require a different instrument.

Highlights

  • Measures voltage and current on USB ports
  • Real-time power monitoring for chargers and power banks
  • Compact DC digital voltmeter and ammeter in one
  • Model KWS-MX18 designed for internal cable installation

Specifications

No published specifications for this item yet.

Questions about this item

What does the 18 in the model name represent when the tester is connected to a power source?

The 18 identifies the KWS-MX18 model of USB tester that measures DC voltage and current on the attached cable.

Which USB interface does the KWS-MX18 use for its measurements?

The KWS-MX18 plugs into a standard USB port to display voltage, amperage and power for chargers or power banks.

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