Surface Book Power Supply Unit£79.99 Effortlessly and quickly charge your Surface Book with this versatile 102-watt power supply, which includes an additional USB port for charging another device at the same time. Surface Book Power Supply Unit quantity Add to basket Technical Specification Related products Microsoft Wireless Display Adapter £49.49 Add to basket Microsoft Surface 24W Power Supply £31.49 Add to basket Surface Headphones £296.99 Add to basket