--- product_id: 492307095 title: "ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.2 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester" brand: "chargerlab" price: "6350588₫" currency: VND in_stock: true reviews_count: 10 category: "Charger Lab" url: https://www.desertcart.vn/products/492307095-chargerlab-power-z-km003c-portable-usb-c-fast-charging-tester store_origin: VN region: Vietnam --- # 240W max PD power 1.54" high-contrast LCD Dual USB-C ports + HID ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.2 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester **Brand:** chargerlab **Price:** 6350588₫ **Availability:** ✅ In Stock ## Summary > ⚡ Power-Test Like a Pro — Stay Ahead in the Fast-Charging Game! ## Quick Answers - **What is this?** ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.2 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester by chargerlab - **How much does it cost?** 6350588₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/492307095-chargerlab-power-z-km003c-portable-usb-c-fast-charging-tester) ## 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 ⚡:** Supports USB PD3.2 & QC5.0 fast charging protocols for ultimate device compatibility and speed. - • **Crystal Clear Display 📊:** Larger 1.54-inch gravity-rotating LCD with high contrast UI ensures effortless real-time monitoring anywhere. - • **Dual USB-C Ports + HID 🔌:** Designed for seamless input/output testing and PC connectivity for advanced data analysis and firmware updates. - • **Future-Proof & Updatable 🔄:** Firmware updates via PC software keep you ahead of evolving USB PD standards—never get left behind. - • **Pro-Grade Precision Inside 🧠:** ARM Cortex-M4 processor with 20-bit ADC delivers ultra-accurate voltage, current, and protocol diagnostics. ## Overview The Power-Z KM003C is a compact, professional-grade USB-C fast charging tester featuring PD3.2 and QC5.0 support, a large 1.54-inch high-contrast LCD, dual USB-C ports plus HID for PC connectivity, and an ARM Cortex-M4 processor with 20-bit ADC. It delivers precise voltage, current, and protocol analysis up to 240W, with firmware updates ensuring compatibility with the latest USB power delivery standards—ideal for tech-savvy professionals and device testers. ## Description desertcart.com: ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.2 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester : Cell Phones & Accessories Review: The Software Is Great! Alot of attention of detail went into this meter. A++ - Alot of love has been put into this design and the software that goes with it. The software has a USB-C PD protocol analyzer that shows you the communication between devices as they negotiate the voltage and current levels that will be allowed and supplied which is very helpful if your designing a device that had USB-PD sink or source features which is what I'm doing which is something I have not seen in a device at this price range. This was a pleasant surprise when I started looking into the software features. The firmware is easily updatable via the software also which means you will not be missing out on any new features as the USB protocol changes over time. The display has a very nice layout and is easy to read and and navigation of the features is alright once you get used to what buttons do what. It's surprisingly smaller than I expected which makes it easy to bring along if you want. For me this allows me to quickly verify the power output of battery banks, AC chargers, and the power consumption of devices I use or am testing. The software allows you to graph out everything over time and save it to a file for later use or comparison. I can tell a lot of love was put into this design, UI, and Software and feel like for $100 it's a steal if you can use all the extra features it provides. Chargerlab has a great Blog where they tear down power banks and bigger solar charger systems and show exactly what is inside and what chips were used if your into those types of things. They use this meter to verify the capabilities of all these different products which means they have to make sure the meter is capable of detecting all the latest USB PD and other standards which means this will always be getting updates as things change over time. I would say spend the extra money and buy this one if you want the best. Review: ⭐️⭐️⭐️ The best of all testers, Alt DisplayPort capable - ChargerLab KM003C is by far the most modern USB-C tester, preserving all cable lines, thus it is Alt DisplayPort compatible and allows for video signal transmission with PD 3.1 support. It is surprisingly small, and the screen displays more information than the competition. By far the best USB tester, kudos to ChargerLab. I am providing an overall comment for three USB testers, all of which deserve to be purchased as they complement each other perfectly and are consistent in their results. I would like to dedicate the majority of this review to the Bit Trade One model, which has recently arrived on desertcart. It deserves a shoutout because the tool is exceptional and inexpensive for what it offers. The ADUSBCIM is a USB cable tester that truly complements traditional USB cable testers. Only the cable to be tested needs to be plugged into the A and B ports, and the tool does the rest. The reference value for calculating the cable's resistance is taken using a CR2032 battery, and I note that the calculation is very precise and stable. You can find on Bit Trade One's ADUSBCIM GitHub page, in the Pull Request section, a manual in English in PDF format. This is my small contribution to the project, as the current official English manual is more of a word-by-word description that is difficult to understand. Thanks to this tester, I discovered, for example, that Anker cables, the 765 series, were actually poor high-resistance cables, and that I had much better options for charging. I ended up wasting money on cables that turned out to be slower than cables that were given to me for free with computer accessories. The FNIRSI FNB58 is a very comprehensive USB-A and USB-C port tester. It notably offers numerous rapid charging protocol tests, can test the quality and resistance of a cable, and obtain oscilloscope-like graphical representations. Now that we are on PD3.0 and with PD3.1 approaching quickly, owning one of these tools is now essential to validate the proper functioning of an installation. I've read a lot of advice on Reddit, and if you're looking to equip yourself with the best products offering the most testing possibilities, here are the tester references to get: - Bit Trade One ADUSBCIM (very thorough cable tester testing all the lines of a cable) - FNIRSI FNB58 (the most comprehensive, many ports, many scenarios, USBA/C Micro) - ChargerLab KM003C (the most modern, TB4, 250W) If you have these three or at least a combination of the cable and usb tester, it will take you no more than a few days to become a USB expert. 👌 ## Features - 【PD3.2】This is the POWER-Z product page. This tester is the latest version and can support PD3.2. - 【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. - 【More Powerful】This tester integrates ARM Cortex-M4 processor and 20 bit ADC. It can support up to 50V 6A (240W in PD) and USB PD protocol analyzer. The PC software can obtain 10 million pieces of data at a time. - 【Designed for USB-C】It's equipped with two USB-C ports for current input & output and an additional HID port (USB-C) for connecting to PC & power supply. - 【Tech Support】This model can support English and Chinese. Please go to our official website to get the manual and PC software (For update and further analysis). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BJ24PVNJ | | Best Sellers Rank | #16,831 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #15,989 in Cell Phone Accessories | | Brand | ChargerLAB | | Color | Silver | | Date First Available | October 11, 2022 | | Item Weight | 0.58 ounces | | Item dimensions L x W x H | 1.4 x 0.34 x 1.44 inches | | Item model number | KM003C | | Manufacturer | ChargerLAB | | Measurement Type | Ammeter, Voltmeter, Multimeter | | Power Source | Usb Type-c | | Product Dimensions | 1.4 x 0.34 x 1.44 inches | | Specification Met | CE, EMC, FCC, RoHS | | Style | Modern | | UPC | 756166474123 | ## Product Details - **Brand:** ChargerLAB - **Color:** Silver - **Item Weight:** 0.58 Ounces - **Power Source:** Usb Type-c - **Style:** Modern ## Images ![ChargerLAB Power-Z KM003C Portable USB-C Fast Charging Tester PD3.2 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester - Image 1](https://m.media-amazon.com/images/I/61TMq46q3bL.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 ### ⭐⭐⭐⭐⭐ The Software Is Great! Alot of attention of detail went into this meter. A++ *by R***N on March 30, 2024* Alot of love has been put into this design and the software that goes with it. The software has a USB-C PD protocol analyzer that shows you the communication between devices as they negotiate the voltage and current levels that will be allowed and supplied which is very helpful if your designing a device that had USB-PD sink or source features which is what I'm doing which is something I have not seen in a device at this price range. This was a pleasant surprise when I started looking into the software features. The firmware is easily updatable via the software also which means you will not be missing out on any new features as the USB protocol changes over time. The display has a very nice layout and is easy to read and and navigation of the features is alright once you get used to what buttons do what. It's surprisingly smaller than I expected which makes it easy to bring along if you want. For me this allows me to quickly verify the power output of battery banks, AC chargers, and the power consumption of devices I use or am testing. The software allows you to graph out everything over time and save it to a file for later use or comparison. I can tell a lot of love was put into this design, UI, and Software and feel like for $100 it's a steal if you can use all the extra features it provides. Chargerlab has a great Blog where they tear down power banks and bigger solar charger systems and show exactly what is inside and what chips were used if your into those types of things. They use this meter to verify the capabilities of all these different products which means they have to make sure the meter is capable of detecting all the latest USB PD and other standards which means this will always be getting updates as things change over time. I would say spend the extra money and buy this one if you want the best. ### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️ The best of all testers, Alt DisplayPort capable *by A***. on March 14, 2024* ChargerLab KM003C is by far the most modern USB-C tester, preserving all cable lines, thus it is Alt DisplayPort compatible and allows for video signal transmission with PD 3.1 support. It is surprisingly small, and the screen displays more information than the competition. By far the best USB tester, kudos to ChargerLab. I am providing an overall comment for three USB testers, all of which deserve to be purchased as they complement each other perfectly and are consistent in their results. I would like to dedicate the majority of this review to the Bit Trade One model, which has recently arrived on Amazon. It deserves a shoutout because the tool is exceptional and inexpensive for what it offers. The ADUSBCIM is a USB cable tester that truly complements traditional USB cable testers. Only the cable to be tested needs to be plugged into the A and B ports, and the tool does the rest. The reference value for calculating the cable's resistance is taken using a CR2032 battery, and I note that the calculation is very precise and stable. You can find on Bit Trade One's ADUSBCIM GitHub page, in the Pull Request section, a manual in English in PDF format. This is my small contribution to the project, as the current official English manual is more of a word-by-word description that is difficult to understand. Thanks to this tester, I discovered, for example, that Anker cables, the 765 series, were actually poor high-resistance cables, and that I had much better options for charging. I ended up wasting money on cables that turned out to be slower than cables that were given to me for free with computer accessories. The FNIRSI FNB58 is a very comprehensive USB-A and USB-C port tester. It notably offers numerous rapid charging protocol tests, can test the quality and resistance of a cable, and obtain oscilloscope-like graphical representations. Now that we are on PD3.0 and with PD3.1 approaching quickly, owning one of these tools is now essential to validate the proper functioning of an installation. I've read a lot of advice on Reddit, and if you're looking to equip yourself with the best products offering the most testing possibilities, here are the tester references to get: - Bit Trade One ADUSBCIM (very thorough cable tester testing all the lines of a cable) - FNIRSI FNB58 (the most comprehensive, many ports, many scenarios, USBA/C Micro) - ChargerLab KM003C (the most modern, TB4, 250W) If you have these three or at least a combination of the cable and usb tester, it will take you no more than a few days to become a USB expert. 👌 ### ⭐⭐⭐⭐⭐ Buy it. Worth the $$ *by R***N on March 6, 2026* Worth the money. Best USB-C tester I've used... Can be externally powered so that you can monitor the complete USB-C negotiation timeline. [It has 3 connectors ones at the top] ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/492307095-chargerlab-power-z-km003c-portable-usb-c-fast-charging-tester](https://www.desertcart.vn/products/492307095-chargerlab-power-z-km003c-portable-usb-c-fast-charging-tester) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-25*