How to Use: Plug it when you want to use it. Specification: Item Type: USB C to VGA Adapter Material: Aluminum Alloy Plug: USB C Male to VGA Female Resolution: Support 1080P at 60Hz and support QXGA (2048x1536), QWXGA (2048x1 280 RB), WUXGA (1920x1200 RB) and UXGA (1600x1200) resolution output VGA Interface: VGA DB15P Female Output Support System: For Windows, for Android, for OS X Support hot plug, plug and play Supports all devices that can output video in Type-C Package List: 1 x Adapter Note: Not all USB?C ports are compatible, only applicable to USB?C 3.1 ports that support "DisplayPort Alternate Mode". Please make sure your laptop or mobile phone supports USB?C and DPAlt mode.