Features: Multi screen expansion: Supports three screen split display/different display, can simultaneously connect two external displays, and supports mirroring/expansion modes 4k high-definition reproduction of true color: HDMIcompatible supports 4K30Hz resolution andaudio videos synchronization. Two in one interfacse: Computers that support USB and type-C interfaces to meet different device requirements Compatiblewith multiple systemswith built-in FLASH driver, no need forCD, supporting copy screen and expansion screen configuration at will. Notebook Type-C/USB interfaces connected to HDMIcompatible display, dualscreen 4K30Hz+1080P 6OHz l highdefinition imagesquality. Mobile phones turn into computers in seconds, connect to TVs/monitors, mobile phones turn into office computers in seconds, and the screen turnsinto a keyboard and mouse, creating a new experience for mobile work Specifications: Material: ABS Size:approx 60x50mm/2.36x1.97in Support USB and type-C interfaces Resolution:4K30Hz Package Includes: 1PC USB TypeC Adapter note: Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!