1. The adapter outputs 5V/1A 15V/4A. Compared with the rated voltage and current of general chargers, we innovate and optimize the output to that the supply has good stability and high accuracy, and avoids computer flickering, battery charging time and other phenomena. More stable, safer and faster.2. PC+ABS material, strong heat , high temperature , flame retardant and fireproof, high temperature burning test does not deform, realizing real fire prevention and anti-cracking, meeting the V0 fire rating standard3. Encrypted copper core, accelerating charging, high-quality wire with thickened copper core, tinned copper core, energy-saving transmission , high oxidation and corrosion , ensuring the service life of the wire4. Applicable computer models: For SURFACE BOOK 3, SURFACE BOOK 2, SURFACE BOOK, SURFACE LAPTOP 3, SURFACE LAPTOP, SURFACE LAPTOP, SURFACE PRO X, SURFACE PRO 7, SURFACE PRO 6, SURFACE PRO (fifth generation), etc. Wait.5. Magnetic interface, charging faster and safer, stable voltage and current, faster conversion efficiency, lower heat generationOutput voltage: 5V/1A 15V/4AInput voltage range: 100-240VApplicable form of charger: direct chargeApplicable products: laptopScope of application: for Output current: 4A: 65WCharging interface: magnetic interfaceLine length: 2.Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.Colour:BlackMaterial:ABS+PCSize:90x50x245mmPackage Contents:1* AdapterOnly the above package content, other products are not included.Note: Light 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.