Features: Brand new and high quality Transform your Laptops unused 4G card slot into a USB port with the Adapters, offering stable data transfer. This board supports USB for efficient data transfer Suitable for individuals expand their device capabilities without compromising on functionality. Easily connect USB devices like wifi cards and mouse receivers to maximized your Laptops's potential. Experience convenience and versatility with this Adapters, a valuable accessory for modern Laptops. Specifications: Material:PCB Size:Approx.42x30mm/1.65x1.18inch Package Includes: 1x Converters Board note: 1.Please allow 1-2cm errors due to manual measurement, make 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.