USB Color Screen Tester FNB38 Key benefits - Provides reliable USB voltage and current measurement with a color display for clear, at-a-glance results - Serves as a fast charging trigger for mobile devices and terminals, helping you identify compatible chargers and cables quickly - Compact, versatile tester that fits into daily workflows without requiring special drivers What it does - Measures and displays USB voltage and current with a color screen for easy monitoring - Supports driver-free host computer upgrades and fast charging identification - Stores data, offers a bilingual interface, adjustable display brightness, and precise measurements - Detects energy capacity and enables intelligent recording and screen rotation for flexible use Core features - Small form factor with big functionality: 44 inch TFT LCD high definition display integrated into the device - Interfaces: USB-A, Micro USB and Type-C - Internal components: external 16-bit ADC and a physical PD protocol chip - Functions include data storage, fast charging trigger, precision measurement, energy capacity detection, fast charge identification, screen rotation and intelligent recording - User interface: adjustable brightness and bilingual (language) support Protocol support - Protocol detection and triggering for fast charging standards including PD, QC0, .0, FCP, SCP and AFC Specification and build - Part name: USB tester - Model: FNB38 - Material: Made of metal and plastic - Colour: black - Product Size: 69mm x 30mm x 5mm Use scenarios - Verifying charger compatibility and fast charge negotiation between a USB charger, cable and device in a workshop or at home - Checking USB power banks or portable batteries to confirm available voltage/current and energy capacity - Troubleshooting charging performance by capturing real-time data and saving test results for later review Notes - All specifications are as described and intended to match the original model FNB38 and its listed features and capabilities.