Specifications:Material: ABS,copper Color: black Interface: type c Features: (1)Allows you charge your Surface devices via 45W 15V3A USB-C Power Delivery (PD) wall charger or power bank, you only need to bring a USBC charger to charge many devices including Surface on the go. It is very lightweight and portable. It can also be used as a spare charger. (2)Requirement: This cable requires an USB-C charger or charging bank that support 45W 15V3A output. Female USBC charging cable also need the USBC cable can carry 3A current. Doublecheck your USBC charger to ensure that it lists "15V/3A" in the specifications. Some PD chargers didn't support the cable. (3)Charging only: It should be noted that this product can only be used for charging surface devices, data and HDMI-compatible cannot be transmitted. Each unit is inspected and tested prior to shipment. (4)Compatibility: for compatible with Microsoft Surfaceicrosoft Surface pro7/6/5/4/3, Surface Laptop1/2/3, Sruface Book1, Surface Go1/2/3. This cable is compatible with Surface Pro 8, but due to limitations, the system will show "Slow charging cable is connected", but the power is enough that you can work and entertainment normally. (5)TROUBLESHOOTING: 1. If the LED flashes: it means that your charger has insufficient power. Please use a USB-C charger of 15V3A and 45W or above. 2.Phone and Pad Charger can't work: Due to lack of 15V output or less than 45W, Most phone charger wouldn't work with this cable. Older for Macbook Charger do not meet the requirement, such as A1718, A1719, A1540, A1882. 3.If the LED don't light up: Please try another 15V/3A 45W charger. Package Included: 1x Surface Connect to USB-C Charging Cable Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding. 1.Allows you charge your Surface devices via 45W 15V3A USB-C Power Delivery (PD) wall charger or power bank, you only need to bring a USBC charger to charge many devices including Surface on the go. It is very lightweight and portable. It can also be used as a spare charger 2.Requirement: This cable requires an USB-C charger or charging bank that support 45W 15V3A output. Female USBC charging cable also need the USBC cable can carry 3A current. Doublecheck your USBC charger to ensure that it lists "15V/3A" in the specifications. Some PD chargers didn't support the cable 3.Charging only: It should be noted that this product can only be used for charging surface devices, data and HDMI-compatible cannot be transmitted. Each unit is inspected and tested prior to shipment 4.Compatibility: for compatible with Microsoft Surfaceicrosoft Surface pro7/6/5/4/3, Surface Laptop1/2/3, Sruface Book1, Surface Go1/2/3. This cable is compatible with Surface Pro 8, but due to limitations, the system will show "Slow charging cable is connected", but the power is enough that you can work and entertainment normally 5.TROUBLESHOOTING: 1. If the LED flashes: it means that your charger has insufficient power. Please use a USB-C charger of 15V3A and 45W or above. 2.Phone and Pad Charger can't work: Due to lack of 15V output or less than 45W, Most phone charger wouldn't work with this cable. Older for Macbook Charger do not meet the requirement, such as A1718, A1719, A1540, A1882. 3.If the LED don't light up: Please try another 15V/3A 45W charger