Ainex KM-09 checks USB C power with precision and ease

Ainex just made a new USB Type-C power checker called the KM-09. This little gadget lets you see exactly how much power and voltage comes through your USB-C cables. It came out on April 7, 2025, and measures power up to 140W plus voltage from 5V to 28V. You can buy one for about 880 to 980 yen, which equals around $6.50 to $7.40 in US dollars. They start shipping on April 9, 2025. Tech experts love these things because they help fix problems with USB-C connections.

When you plug the KM-09 into your device, its screen shows both the voltage and power numbers right away. The display flashes "PD" whenever power delivery happens, making it super easy to check if everything works right. The device works with USB4 and handles 40 Gbps data speeds, which means it supports fast transfers and even 8K video at 60 Hz. This makes the checker perfect for anyone using high-end monitors or devices that need lots of data bandwidth.

The KM-09 fits almost anywhere because it measures just 32.8mm wide, 12.6mm deep, and 7.4mm high. It gives you really accurate readings down to 0.1V for voltage and 0.1W for power. You can use it anywhere between 0°C and 40°C, which covers most places you might work. Tech experts who deal with USB Type-C systems find this tiny tool extremely helpful for testing and troubleshooting their equipment. The small size lets you carry it anywhere you need to check power delivery on the go.
 

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