- USB Color Screen Tester: A dependable USB voltage and current detection device featuring a color screen. It also functions as a fast charging trigger for mobile devices. - Compact Yet Powerful: This USB tester boasts numerous practical features, including driver-free upgrades for host computers, fast charging triggers, data storage, a bilingual interface, adjustable brightness, precise measurements, energy capacity detection, fast charge identification, screen rotation, and intelligent recording. - Versatile Interface Compatibility: The 4.4-inch TFT LCD high-definition display comes with USB-A, Micro USB, and Type-C interfaces. It is equipped with an external 16-bit ADC and a physical PD protocol chip for enhanced performance. - Fast Charging Protocol Detection: The tester recognizes various fast charging protocols, including PD, QC 2.0, QC 3.0, FCP, SCP, and AFC, ensuring compatibility across multiple devices. - Specifications: - Part Name: USB Tester - Model: FNB38 - Material: Metal and Plastic - Color: Black - Product Size: 69mm x 30mm x 5mm - Use Scenarios: - Monitor the charging speed of your mobile devices to ensure optimal performance. - Upgrade host computer drivers effortlessly without additional software. - Evaluate energy capacity for power banks and other charging accessories. This USB Color Screen Tester is an essential tool for anyone needing precise monitoring and fast charging capabilities, all in a compact, user-friendly design.