It is a USB tester with high reliability and security for detecting the USB voltage and current and a mobile communication terminal fast charge triggers. USB 2.0 interface, 1.44 inch TFT LCD high definition display with integrated USB-A, Micro-USB, Type-C interfaces, use external 16-bit ADC, PD protocol physical chip. Drive-free PC upgrade, PD E-Marker read, fast charge recognition, fast charge deception. PD protocol monitoring, PD protocol conversion, precision measurement. Data storage, intelligent recording of energy capacity detection. One screen display, multiple interfaces compatible. Can be used for fast charge protocol detection, QC2.0 trigger, QC3.0 trigger, Huawei-FCP trigger, Huawei-SCP trigger, Samsung-AFC trigger, PD protocol trigger, and so on. Colour:black Material:CNC metal housing style:Non-Bluetooth Version Package Contents: 1 * USB mobile phone DC charger tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.