It's a Type-C to USB 3.0 adapter with HDMI and a Type-C charging port. The USB 3.0 port allows connection of USB devices to a host or charging dock. The USB female port supports data transmission to the host. The HDMI port (DP Alt Mode) enables connection to an external monitor for viewing videos or slideshows on a larger screen. Compatible with MacBooks, the new Google Chromebook Pixel, and other Type-C enabled devices. Features: 1. 3-in-1 Type-C male to Type-C, HDMI, and USB adapter cable with gold-plated connectors 2. Supports HDMI resolution up to 4096 x 2160 (4K Ultra HD compatible) 3. Supports SuperSpeed USB 3.0 data transfer rates up to 5Gbps; backward compatible with USB 2.0 4. USB-C female port for charging compatible devices such as MacBook and Google Chromebook Pixel 5. Multiple ports for simultaneous connectivity; plug-and-play, hot-swappable, and portable design Specifications: Input: USB 3.1 Type-C male Outputs: Type-C female, HDMI female, USB 3.0 female Cable: Triple-shielded Length: Approximately 15 cm Package includes: 1 x Type-C 3-in-1 to HDMI adapter Note: Check your device specifications to confirm compatibility with display output functionality.