This is a multi-functional tester equipped with voltage/current checks, USB PD trigger, and more. I'm selling it because I don't plan to use it anymore. Description: The POWER-Z KT001 sets the benchmark for portable USB power testing with its high precision and intuitive design. It can be used to evaluate the voltage and current of chargers, power banks, phones, tablets, notebooks, and more. It supports the latest PD, QC2.0, QC3.0, AFC, and FCP protocols with automatic detection and trigger functions. It also comes with an MFI cable identification function (for reference only). With custom PC software, it's built for power engineers and electronics enthusiasts. Features: Dual Type-C Design Fast charging measurements are easy and convenient with dual Type-C ports. Automatically detects fast charging protocols Can be used to detect the protocols supported by the device. Colorful LCD Screen You can clearly see the voltage and current data through the 1.44-inch colorful LCD screen. Track Wheel Design One key operation brings a leisurely experience. Small and Portable Small and lightweight, easy to carry. Plug & Play Plug and play, no additional drivers required. Specifications: Color: Red LCD Size: 1.44" LCD Material: TFT Resolution: 128 * 128 Languages: English / Chinese / Japanese Interface Type: USB-A / Micro USB / Type-C Interface Quantity: 5 (including 1 * HID) Operation Type: Track Wheel Operating Voltage: 4-26V Operating Current: 0-6A Supported Protocols: QC3.0 / 2.0, AFC, FCP, SCP, USB-C PD2.0 / PD3.0 / QC 4+ / E-maker. Item Size: 7.6 * 3.1 * 1.1cm / 2.99 * 1.22 * 0.43in (L * W * H) Item Weight: Approx. 27.5g / 0.97oz Package Size: 10.5 * 7.4 * 2cm / 4.13 * 2.91 * 0.79in (L * W * H) Package Weight: 71g / 2.5oz