Manufacturer's Article Number: YYT014 Assembled Product Weight: 0.3 lb Assembled Product Dimensions (L x W x H): 4.00 x 0.60 x 2.00 inches 4-in-1 Dual HDMI Adapter: This USB-C to Dual HDMI Adapter supports devices with a USB Type-C (Thunderbolt 3) port, allowing you to connect to two external screens to enjoy movies and games with your family on an ultra HD large screen. Note: On Mac devices, it supports both reflection mode and extended mode, but only SST is supported due to limitations in Mac OS; MacBook with M1/M2 chip can only be extended to one screen. Windows OS supports both SST and MST modes, while Android systems only support reflection mode. Plug and Play: No external power supply or driver is required - just plug and play. Note: Compatible with all laptops with USB-C port; make sure your laptop or PC supports Thunderbolt 3 or DisplayPort mode (DP ALT mode). Fast PD Charging: This HDMI hub for dual screens provides high-speed transfer charging up to 87W, making it ideal for charging most USB-C ports on laptops, tablets, and mobile phones. High-speed charging is safe and efficient, saving charging time and enabling more gaming fun. USB 3.0 High-Speed Data Transfer: Enjoy full USB 3.0 SuperSpeed data transfer up to 5 Gbps, which is 10 times faster than USB 2.0. Transfer files, HD movies, and music to your USB-C devices in seconds. Wide Compatibility: This 2 HDMI USB-C adapter is an ideal adapter that is compatible with all Thunderbolt 3 devices, including MacBook Pro 2020/2019, MacBook Air 2019-2020, Dell XPS13/15, Lenovo Yoga 720/910/920/930, Microsoft Surface Book 2/Surface Go/Surface Laptop 3, Dell Latitude 13 7000/Latitude 13 E7370, HP Spectre Folio (13t-ak000cto)/HP Spectre x360 13t/HP Spectre 360 Laptop/HP EliteBook 840 G5 series/2018 HP Elite 800 G4/HP 13-af001TU/HP Zbook 17 G4 and more. Dual Monitor Adapter: This USB-C to Dual HDMI adapter connects a computer, laptop, or smartphone with a USB Type-C or Thunderbolt 3/4 port to one or two screens with an HDMI input. Dual HDMI supports 4K@30Hz, backward compatible with 2K and 1080p resolution. Supports SST on Windows, MacOS, Supports Multi-Stream (MST) on Windows. 1. How to set up Dual display on MacBook? "Settings" → "Display" → Click the "Mirror Display" checkbox to switch to extended mode → Then you can drag a web page/movie to the right edge of your desktop screen until it disappears on your desktop screen and appears on the external monitor. (Note: On Mac devices, you CANNOT extend two different screens, ONLY mirror screens due to limitations in Mac OS) 2. How to connect Extend Mode for Windows OS? Right-click on the desktop → Select Intel Display Settings → Popup display settings → Select Display → Select Multiple Displays → Expand the desktop (If screen 3 does not appear, select the screen manually → Click Apply to confirm that you can set up OK) 3. If one of the screens does not appear, how do I do that? Right-click on the desktop → Graphics Settings → Select one or more active screens. Friendly Tips: Does not support Apple devices for outputting two different shared screens, including MacBook Air/Pro, iMac, etc. A → B + C Extended Mode 1: Laptop shows "A" + 1 extended screen shows "B" + 1 extended screen shows "C" is available. For Windows A → B + B Extended Mode 2: Laptop shows "A" + 2 extended screens show "B" is available For Windows / Mac OS A → A + A Reflection Mode: Laptop shows "A" + 2 extended screens show "A" is available For Windows / Mac OS / Mobile Phone