Compact Bi-Directional USB-C Power Tester measures Voltage/Current/Wattage; Digital OLED display w/180-degree flip rotation - Portable design ideal for traveling IT Pros; Diagnose power issues between USB-C docking stations/chargers/hubs/peripherals; Test USB-C cables to ensure full power from USB-C sources - USB data pass-thru up to 10Gbps including DP Alt Mode video - 4.5V-50V/50mA-6.5A operating range and 240W USB Power Delivery 3.1 EPR; Note: Not compatible with Thunderbolt 3 devices