1、The lock that can fix the module is added, which is convenient for users to install and improves the reliability and stability of the module. 2、PCB added 4 screw holes, so that the adapter card can be installed into the industrial control cabinet. 3、The distance between the SIM card holder and the backseat components is increased to facilitate the user to disassemble and install the SIM card. 4、Add USB 4-wire input port, which can weld USB cable directly. 5、Carefully welding, precise hole position, complete functions. Features: The lock that can fix the module is added, which is convenient for users to install and improves the reliability and stability of the module. PCB added 4 screw holes, so that the adapter card can be installed into the industrial control cabinet. The distance between the SIM card holder and the backseat components is increased to facilitate the user to disassemble and install the SIM card. Add USB 4-wire input port, which can weld USB cable directly. Carefully welding, precise hole position, complete functions. Specifications: Material: ABS Size: Approx. 13*6*1cm/5.12*2.36*0.39inch Color: As is shown on the photo Interface: 4Pin Compatible 3G/4G Brand: For Module: MU609 PCIE, MU709S-2 PCIE, MU509-B PCIE, MC509-A PCIE, EM770 770J 770W, EM820U 820W, ME909u-521, ME909s-821, ME909S-120, etc. For ZTE Module: MF210, ME3760V2C, ME3760V2D, ME3760 Private Network, MF210V2, AD3812, MC2716, ME3620, ME3630, etc. For FORGE/MAG Module: SLM630, SLM630B For LONGSHANG Module: U8300, U8300W, U8300C, C5300V, U7500E, U6300V For YUGE Module: CLM920N, CLM920CN3, CLM920 Full Series PCIE Module For QUECTEL Module: UC20 Full Series PCIE Module, EC20 Full Series PCIE Module For Module: for Full Series PCIE Module For USR Module: USR-G402tf PCIE Module Support 3G and 4G CARDS of for sierrawireless/Telit/cinterion/Ericsson/HUAYU/DATANG and other brands, which are used to connect to the Internet via USB port and to unlock and debug the devices through the modules. Package list: 1 x Converter Card 1 x Instructions 1 x Connect Cable 1 x Screwdriver 4 x Screw Note: The product applies to many brands of 3 g modules, such as for ZTE/LONGSHANG/FORGE/MAG/YUGE/QUECTEL/AIRCARD/OPTION/HUAYU/DATANG brands such as 3G card, applied via the USB port to connect Internet and 3G module flash, debugging, testing and unlock, can also be used for WiFi module of USB bus (USB bus) and the Mini PCI - E interface card (USB bus) via USB to test.