About this item [Compatibility]; This 65W charger is designed to be fully compatible with major surface series, including Surface Pro (10/9/8/7/7+ Plus/6/5/4/3/X), Surface Laptop (7/6/5/4/3/2/1st), Surface Book, and high-performance Surface Laptop Studio 1st or Surface Go models (1st, 2, 3, 4, etc.). It intelligently supports both 65W and 44W, 39W, 24W devices with a Magnetic connector. If your model requires a 15V/4A or 2.58A output with a small Magnetic connector, this is your perfect match. [Portable Design]; Whether you are heading on a business trip or a family vacation, this lightweight power adapter (only 240g) is your ideal travel companion. With a wide input range of 100-240V, it works seamlessly in any country. The slim, compact profile slides easily into carry-on luggage, while the extra-long 8ft (2.5m) total reachincluding a detachable AC cordensures you can stay powered even when the wall outlet is far from your desk or airport seat. [Safety with Overheat Protection] Safet