AviBrex USB C to HDMI Cable Converter USB 4K Adapter Huawei P30 P20 Braided 6M
Note the pictures are of a cheap cable to show the design of the cable only. Huawei P20. Huawei P20 Pro. USB 3.1 Type C input and HDMI output. Huawei Mate 10 / 10 Pro. Huawei Mate 20 / 20 Pro. No adapter, no converter needed.