Description: Module can be inserted directly on the motherboard above use Can also use USB3.0 external use External USB flash drive can also be an external extension, WIFI external Motherboard online print module using imported communication chips, Good stability, drive-free installation, networking automatically identify the installation driver, eliminating the need for trouble. Specification: Material: PCB board Size: 5.5 * 4.5 * 1CM Package Includes: 1x USB Online Module