This a Mini PCI-E to USB2.0 Adapter Card. Support 3G/4G Module. Features: The lock catch of the fixed module is added so that the user can install easilyand improve the reliability and stability of the module work. 4 screw holes are added on PCB to used for industrial control small chassisinterior. With SIM card holder to conveniently install and dismount SIM card. Support many 3G and 4G modules, such as MU609 PCIE, MU709S-2 PCIE, MU509-B PCIE,MF210,etc. No need to install any drive. LED indicator light will be on when it is working. Specification: Item size: 8 * 3 * 1cm / 3.15 * 1.18 * 0.39in(L * W * H) Item weight: Approx.16g / 0.56oz Package size: 11.5 * 6 * 1cm / 4.53 * 2.36 * 0.39in(L * W * H) Package weight: 16g / 0.56oz Package List: 1 * Adapter card 1 * Screw driver