Unigraf UCD-340 USB-C DP Alt Mode Tester 066514 first integrated test equipment for testing DP Alt Mode in USB Type-C sinks and sources. UCD-340 is 4K capable test unit for USB-C DP Alt Mode Sinks or Sources. USB 3.0 Interface to Host PC. TSI SDK Basic Test Set included. It features a flexible and robust way of testing video, audio and power delivery functions of USB‑C. The provided software enables user access to the vital parameters and controls needed when evaluating the various functions of the interface.