【Power Digital LED Display Design】This usb c voltage meter tester adapter allows you to monitor how many watts your device is passing through and keep track of its health at all times. You can also use the type c adapter to test whether the wattage used by the device when operating is optimal, so as to make effective adjustments in a timely manner. | 【240W PD Fast Charging & 40 Gbps Data Transfer】: This usb c power meter tester adapter to will work up to 240W and totally provide the amount of power to satisfy your requirement of Macbook or other USB-C device. It can automatically adjust the power output parameters according to your device need. The data transfer speed is up to 40 Gbps . | 【Universal Compatibility】Suitable for connecting two devices with C port when wearing a phone case. Widely work with most Type C devices. For USB-C cable, compatible with Chromebook, Surface Book, Macbook Pro/Air, iPad, iPhone 15 Series, PC, laptops, tablets, smartphones, etc. | 【Highly Practical and Reliability】Small and portable. Plug and Play. No external driver or software installation needed. Each usb c tester adapter tested manually to ensure that it can work perfectly. | 【You Can Get】2-Pack usb c tester power meter adapter.