Aluminium foil and shielding net: To filter electromagnetic interference and improve charging stability. (Only for Charging, not Syncing data). (NOTE: 65W and above required for Surface Pro 6.). This product has been tested and validated to ensure it will work with Microsoft Surface Pro 7/6/5/4/3, Surface 3, Surface Laptop, Surface Laptop 2, Surface Studio, Surface Book 1, Surface Book 2, Surface Go.
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