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ChargerLAB

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?

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.

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?

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?

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/

Product ID: 682939363

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Details

Brand
ChargerLAB
Power source
Usb Type-c
Style
Portable
Colour
Silver
Item weight
0.58 Ounces

⚡ARM Cortex M4 + 20-bit ADC for ultra-precise readings

📊1.54-inch high-contrast gravity-rotating LCD

🔋Supports up to 240W PD3.1 fast charging

Frequently Bought Together

ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester

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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

Description

⚡ Power up your charging game with precision and style!

ULTRA PORTABLE POWER - Compact, lightweight design (just 16.4g) fits perfectly in your tech arsenal for on-demand diagnostics.
CRYSTAL CLEAR DISPLAY - Larger 1.54-inch gravity-rotating LCD ensures you never miss a detail, even on the go.
PRO LEVEL DATA ANALYSIS - Connect via USB-C HID port to PC and analyze up to 10 million data points with included software.
ALL IN ONE TESTING SUITE - Voltage, current, capacity, e-marker, PDO, and protocol tests—everything a pro needs in one sleek device.
NEXT GEN POWER PRECISION - Experience cutting-edge PD3.1 and QC5.0 compatibility for future-proof fast charging insights.

The ChargerLAB Power-Z KM003C is a portable, professional-grade USB-C fast charge tester supporting PD3.1 and QC5.0 protocols. Featuring a large 1.54-inch gravity-rotating LCD, ARM Cortex M4 processor, and 20-bit ADC, it delivers precise voltage, current, and protocol analysis up to 240W. With dual USB-C ports and PC connectivity, it’s the ultimate tool for tech-savvy professionals demanding accurate, real-time charging diagnostics.

Specifications

Manufacturer	ChargerLAB
Part number	KM003C
Item Weight	16.4 g
Product Dimensions	3.55 x 0.87 x 3.65 cm; 16.44 g
Item model number	KM003C
Color	Silver
Style	Portable
Power source type	Usb Type-c
Item Package Quantity	1
Specification met	CE
Included components	Super capacitor
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

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?

Does this test for faulty/slow (usb 2.0) cables aswell? i need something to verify usb-c cables are 5/10/20/40gbps.

Can i use a usb-a adapter to test usb-a ports?

How to test chargers with attached cable? Is there a male to female adapter included?

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