Usage Tips:Allows you to charge for SURFACE devices via a 45W 15V3A USB-C Power Delivery (PD) Wall Charger or Power Bank, you only need to carry a single USB C charger to charge many devices, including for SURFACE. It is very light and easy to carry. Can also be used as a backup charger. Requirements: This cable requires a USB-C charger or power bank that supports 45W 15V3A output. The female USBC charging data cable also requires a USBC cable that can carry 3A current. Double check your USBC charger to make sure it lists "15V or 3A" in the specs. Some PD chargers do not support cables. It is recommended to use the data cable with our GaN 3-port USBC charger to avoid incompatibility issues. Please find the link in the page details. Material: The inner core is made of pure copper cable, which effectively suppresses heat and ensures safety. The shell is TVP. [Charging only] This product can only be used for SURFACE charging devices, data, and HDMI cannot be mitted. Compatibility: For Microsoft Microsoft for SURFACE pro7 or 6 or 5 or 4 or 3, for SURFACE Laptop1 or 2 or 3, Sruface Book1, for SURFACE Go1 or 2 or 3. This cable is compatible with for SURFACE Pro 8, but due to technical limitations, the system will display "Slow Charge Cable Connected", but it has enough power to keep you working and playing. Colour: Black Material: Plastic Size: Length: About 15cm Package Contents: 1 x for SURFACE Connect to USB-C Charging Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.