---
product_id: 524979955
title: "KM003C"
brand: "chargerlab"
price: "$U12769"
currency: UYU
in_stock: null
reviews_count: 8
category: "Charger Lab"
url: https://www.desertcart.uy/products/524979955-km003c
store_origin: UY
region: Uruguay
---

# 240W max charging power 1.54-inch gravity-rotating LCD Multi-protocol & multi-test support KM003C

**Brand:** chargerlab
**Price:** $U12769
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power up your diagnostics with precision and style!

## Quick Answers

- **What is this?** KM003C by chargerlab
- **How much does it cost?** $U12769 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/524979955-km003c)

## Best For

- chargerlab enthusiasts

## Why This Product

- Trusted chargerlab brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up to 240W ⚡:** Harness the latest USB PD3.1 tech for ultra-fast, high-voltage charging diagnostics.
- • **All-in-One Testing Suite 🔍:** Voltage, current, capacity, E-marker, PDO, and protocol tests—everything you need in one compact device.
- • **Crystal-Clear 1.54" Display 📺:** Experience effortless data reading with a larger, gravity-rotating, high-contrast LCD screen.
- • **Compact & Lightweight Design 🧳:** Carry professional-grade diagnostics anywhere with a sleek 16.4g powerhouse.
- • **Thunderbolt & USB-C Certified Insight:** Verify cable authenticity and specs instantly—no more guessing or FOMO on premium gear.

## Overview

The KM003C by ChargerLAB is a cutting-edge USB-C and Thunderbolt tester featuring USB PD3.1 support with up to 240W charging power. It boasts a large 1.54-inch gravity-rotating LCD for easy data visualization and supports comprehensive tests including voltage, current, capacity, E-marker, PDO, and protocol analysis. Compact and lightweight, this FCC-certified device is a must-have for professionals seeking reliable cable and power diagnostics on the go.

## Description

Product Description As the upgraded version of USB PD3.0 protocol, the new USB PD3.1 protocol can support up to 48V, And the charging power can reach 240W. According to the documents from USB-IF, the USB PD3.1 can support extended power range (EPR) of 28V, 36V, 48V and three sets of adjustable voltage supply (AVS). Additionally, starting from version 1.9.2, KM003C has added support for the latest SPR AVS under the PD 3.2 protocol.

Review: Very cool bit of kit, very useful - The most capable analysis device for usb-c and thunderbolt at anywhere near this pricepoint, bit of an indulgence for myself but certainly if you are in the business of diagnosing usb/thunderbolt cabling issues you should have one
Review: Thunderbolt cables specs revealed - This is a nifty little device that allows you to see the voltage, charging and (what I cared about the most) specs of Thunderbolt cables. There are tons of cables out there that claim to be Thunderbolt but they’re not. With this device you can check every cable. The only caveat: it’s very difficult to use and the online manual seems like it’s written by electrical engineers rather than by someone who understands what the average user wants to do and how to do it. So be prepared for some digging.

## Features

- PD3.1 This is the POWER-Z official product page created by ChargerLAB. This tester is the latest version and can support PD3.1.
- Larger Display It has a larger LCD display (1.54 inches) than previous generaion and can support gravity rotation. The high contrast UI makes it easier to get what you need.
- Multiple Tests This tester can support multiple tests, including voltage/current detection, capacity/energy test, E-marker test, PDO test, protocol test, etc.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJ24PVNJ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 80,096 in DIY & Tools ( See Top 100 in DIY & Tools ) 119 in Voltage Testers |
| Certification | FCC |
| Colour | Silver |
| Customer Reviews | 4.5 4.5 out of 5 stars (190) |
| Date First Available | 6 Nov. 2022 |
| Item Package Quantity | 1 |
| Item Weight | 16.4 g |
| Item model number | KM003C |
| Manufacturer | ChargerLAB |
| Part Number | KM003C |
| Power Source | Usb Type-c |
| Product Dimensions | 3.55 x 0.87 x 3.65 cm; 16.44 g |
| Size | 36.5 x 35.5 x 8.7 mm |
| Style | Compact |

## Product Details

- **Brand:** ChargerLAB
- **Colour:** Silver
- **Item weight:** 0.58 Ounces
- **Power source:** Usb Type-c
- **Style:** Compact

## Images

![KM003C - Image 1](https://m.media-amazon.com/images/I/61TMq46q3bL.jpg)
![KM003C - Image 2](https://m.media-amazon.com/images/I/613-sQhEiYL.jpg)
![KM003C - Image 3](https://m.media-amazon.com/images/I/71bDwV1qTyL.jpg)
![KM003C - Image 4](https://m.media-amazon.com/images/I/613EiHtMGfL.jpg)
![KM003C - Image 5](https://m.media-amazon.com/images/I/61mEaV23F-L.jpg)

## Questions & Answers

**Q: I need to test the power on pc ports while using 20gbps external drives.  will this support that?  if not how high will it go?**
A: Yes, it works.
I tested it with a Lexar NM620 512GB M.2 NVMe SSD in an Silverstone MS12 external USB 3.2 Gen 2x2 20Gbps enclousure.

Normaly i get 2100MBps read/write speeds.
When i use the Power-Z to measure the power consumption i get read speeds about 1600MBps and 2000MBps write speed.

**Q: Does this test for faulty/slow (usb 2.0) cables aswell? i need something to verify usb-c cables are 5/10/20/40gbps.**
A: The tester can detect the E-Marker Chip of the cable, which can display its specs info, such as charging speed and data transmission speed.
But most USB 2.0 is not equipped with E-Marker Chip, so the tester cannot test it.

**Q: Can i use a usb-a adapter to test usb-a ports?**
A: It can support testing USB-A devices using a USB-C to USB-A cable.
You can also use a USB-A adapter, but test results may be affected by the adapter.

**Q: How to test chargers with attached cable? Is there a male to female adapter included?**
A: Firstly, there is no male to female adaptor included, but you can also test the charger with attached cable.
Just put the tester between the load (like your laptops, phones) and the attached USB-C cable.
Or simply insert the attached cable into the USB-C Female (Receptacle) of KM003C and connect the tester to an independent power supply.
For more tech support info, you can visit: https://www.chargerlab.com/km003c-km002c-technical-support/

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very cool bit of kit, very useful
*by A***D on 4 September 2025*

The most capable analysis device for usb-c and thunderbolt at anywhere near this pricepoint, bit of an indulgence for myself but certainly if you are in the business of diagnosing usb/thunderbolt cabling issues you should have one

### ⭐⭐⭐⭐ Thunderbolt cables specs revealed
*by D***C on 31 August 2025*

This is a nifty little device that allows you to see the voltage, charging and (what I cared about the most) specs of Thunderbolt cables. There are tons of cables out there that claim to be Thunderbolt but they’re not. With this device you can check every cable. The only caveat: it’s very difficult to use and the online manual seems like it’s written by electrical engineers rather than by someone who understands what the average user wants to do and how to do it. So be prepared for some digging.

### ⭐⭐⭐⭐ Very useful device for anyone in the IT industry
*by A***Y on 8 May 2025*

Bit of a niche product and a little expensive, but very useful if you have a pile of random USB-C cables and need to find their current, voltage and speed capabilities. Also good for interrogating USB-C PD chargers. Whilst I appreciate the compact size, it would be good if they made a slightly larger version with a bigger screen.

## Frequently Bought Together

- ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester
- Treedix USB Cable Tester Board USB Cable Checker Data Wire with Acrylic Case Charging Test Data Line Type-C Micro Type A Type B
- BitTradeOne USB Cable Checker2 [Assembled] Supported USB MiniB/microB/TypeC Cables/USB Digital Tester/USB c Cable Tester/USB Cable Tester Tool / H0.5xW3.5xD2.1 inch ADUSBCIM

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-17*