Product parameters: 1. Plug and play, without the need for additional drivers. When using the HDMI compatible interface alone, the resolution can reach 4K30HZ. 3. It can support simultaneous display of two HDMI interfaces. 4. Supports image extension mode. Mobile phones and Apple systems can only support AAA mode and ABB mode, while laptops on for Windows systems support AAA mode, ABB mode, and ABC mode. 5. Only compatible with devices that support DP Alt Mode protocol, true TYPE-C 3.1 interface, type-c interface on mobile and laptop devices must support both charging and audio and video data transmission protocols. 6. It can provide power supply for mobile phones and laptops, and USB 3.0 data transmission. 7. The aluminum alloy shell is durable and has a smooth appearance design that is corrosion-resistant. The aluminum shell provides better heat dissipation and better signal performance for you. 8. Compatibility: 1. Compatible smartphones that support DP Alt mode (incomplete list): Suitable for Samsung Galaxy Note 10 or Note 10and or Note 9 or Note 8 or S10e or S10 or S10and or S9 or S9and or S8 or S8and Applicable to Huawei Mate 30 or Mate 30 Pro or Mate 20 Pro or Mate 20 X or Mate 10 or Mate 10 Pro or P30 Pro or P20 Pro For OnePlus 7 or OnePlus 7 Pro for OPPO RX17 Pro or Oppo Reno 5G for Europe For Microsoft Lumia 950 or For Microsoft Lumia 950 XL 2. Suitable for iPad Pro 11 inches (2018), for iPad Pro 12.9 inches (2018), for Samsung Galaxy Tab S5e, and for Samsung Galaxy Tab S6. 3. Compatible with Type-C laptops that support DP Alt mode (incomplete list): For MacBook Pro 2016 or 2017 or 2018 or 2019, MacBook Air 2018 or 2019 Suitable for Huawei MateBook, MateBook X, MateBook E, Honor Magic Suitable for Xiaomi Air 12.5 " or 13.3", Mi Pro 15.6 ", Mi Game Book For Asus U306.U321.U4100.R0G Suitable for Lenovo Yoga5 Pro, ThinkPad_X1, Carbon2017, Mix 720 For HP Pavilion x2, Elite Book Folio G1 For Dell XPS13, XPS15 For Google Chromebook pixels, PixelBook Pen For Microsoft Surface Book 2 Packaging includes 1 x Expansion dock Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.