Be careful Not available for audio transmission Not only for charging, but also for transferring data. One USB C female port is used for data and charging, and the other port only has charging function. The C-type female port is used for C-type data cables, C-type disks, card readers, etc. The USB C-type male port is used for USB C PD chargers, Laotop, etc. It only has the output function, supports charging and data transmission, and cannot be used for audio. Plug and Play, no driver required, using this converter, your USB C PD charger or PD charging bank can simultaneously charge 2 devices. standard: Housing material: aluminum alloy Color: Gray Size: 28.6x15x6.5mm Quantity: 1 Package includes: 1*hub 1. We maintain a high level of responsibility for our customers and are as responsive as possible to the needs of our guests. 2. If you have any questions about our products, please contact us in time, we will solve it for you immediately! 3. Due to the different display devices, the color of the products may have some discrepancies, hope you can understand. 4. Due to the different photo shooting angle, the actual shape and size of the product may not be consistent with the picture, please refer to the description of the product size, everything shall be subject to the physical object received. 5. Thank you for your purchase, we sincerely wish you happy every day.