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StarTech USB-C 240W Power Tester and Digital Multimeter
Measure USB-C voltage, current and wattage in either direction while preserving compatible USB 10Gbps data and DisplayPort Alt Mode pass-through.
Why choose USBC-PWRTESTER?
Bi-directional tester measures USB-C voltage, current and wattage.
Supports USB PD 3.1 EPR power scenarios up to 240W.
Operating measurement range of 4.550V and 50mA6.5A.
Best-fit applications
- Diagnosing USB-C charger, hub and docking-station power issues
- Checking whether a USB-C cable carries the expected power
- Monitoring power draw from bus-powered USB-C equipment
Australian warranty assurance
Australian version supplied by DeviceDeal. Covered by the official StarTech.com manufacturer warranty in Australia for 2 years. Retain your DeviceDeal tax invoice. Warranty service is subject to StarTech terms, eligibility and product assessment.
Information verified against the supplied DeviceDeal source workbook, the exact DeviceDeal product page and exact-SKU official StarTech.com product data.
Read DeviceDeal buying guidesFrequently asked questions
What does USBC-PWRTESTER measure?
It provides real-time USB-C voltage, current and wattage readings in either power-flow direction.
What power range does it support?
It measures 4.5 to 50 volts and 50 milliamps to 6.5 amps, with USB PD 3.1 EPR scenarios up to 240W.
Does USB data pass through?
Yes. Compatible USB data can pass through at up to 10Gbps.
Can DisplayPort Alt Mode video pass through?
Yes. The official specification supports compatible DisplayPort Alt Mode pass-through.
Does it work with Thunderbolt 3?
No. StarTech specifically states that Thunderbolt 3 devices are not supported.
Does the tester supply power?
No. It is bus powered and measures the existing USB-C connection; it does not add power.
Can the display be read from either direction?
Yes. The digital display can rotate 180 degrees using its button.
What warranty applies in Australia?
This Australian version is supplied by DeviceDeal with the official 2-year StarTech.com manufacturer warranty in Australia, subject to StarTech terms and assessment.
(USBC-PWRTESTER)
Features and highlights
- Bi-directional tester measures USB-C voltage, current and wattage
- Supports USB PD 3.1 EPR power scenarios up to 240W
- Operating measurement range of 4.550V and 50mA6.5A
- USB data pass-through up to 10Gbps with DisplayPort Alt Mode
- Digital display rotates 180 degrees at the press of a button
- Compact bus-powered design backed by a 2-year warranty

StarTech USB-C 240W Power Tester and Digital Multimeter
Product ID: USBC-PWRTESTER
Measurement and pass-through
| Measurement direction | Bi-directional |
|---|---|
| Voltage range | 4.5V to 50V |
| Current range | 50mA to 6.5A |
| Maximum Power Delivery | 240W, USB PD 3.1 EPR |
| Data pass-through | USB 10Gbps |
| Video pass-through | DisplayPort Alt Mode |
| Display | Digital, with 180-degree rotation |
Hardware
| Connector A | USB Type-C male, USB 3.2 Gen 2, 10Gbps |
|---|---|
| Connector B | USB Type-C female, USB 3.2 Gen 2, 10Gbps |
| Chipset | MCP3421 |
| Power source | Bus powered |
| Insertion rating | 50,000 cycles |
| Thunderbolt 3 | Not supported |
Physical and environment
| Colour / material | Black polycarbonate |
|---|---|
| Dimensions | 23 x 57 x 10mm |
| Weight | 12g |
| Operating temperature | 0 to 40°C |
| Storage temperature | -20 to 85°C |
| Humidity | 5% to 95% |
| Warranty | 2 years |
| SKU | USBC-PWRTESTER |
| Barcode # | 65030904469 |
| Brand | STARTECH |
| Shipping Weight | 0.0200kg |
| Shipping Width | 0.002m |
| Shipping Height | 0.009m |
| Shipping Length | 0.008m |
2 Years StarTech.com warranty
Australian version supplied by DeviceDeal. Covered by the official StarTech.com manufacturer warranty in Australia for 2 years. Retain your DeviceDeal tax invoice. Warranty service is subject to StarTech terms, eligibility and product assessment.
Keep your proof of purchase: retain the DeviceDeal tax invoice supplied with your order.
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