Features: Experience powerful charging with our 400W Boost Laptop Power Module, deliver stable constant voltages for a wide laptop models. This module features over current and over voltages protective to ensure safety of your devices during use. Ideal for business professionals frequently on the go and users who require extended laptop usage without interruption. Perfectly suited for various environment such as offices, cafes, and airports, providing reliable charging whenever you need it. This power solution combines metal and plastic materials, making efficient for all your electronic needs. Specifications: Component:Plasitc+Metal Size:Approx.6.8x4.7cm/2.68x1.85inch Package Includes: 1Pc Boost Converters note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.