ITEM NAME:Mini PCIe WWAN to USB Connector Board with SIM Card Slot for 3G/4G Module Description: Mini PCI-e to USB adapter card, which adds a lock for the fixed module, which is convenient for users to install and improve the reliability and stability of the module. PCB has 4 screw holes for industrial control small chassis Increase the distance between the SIM card holder and the rear panel components Add USB 4-wire input hole disk to directly solder USB cable Working principle: Mini PCI-e 52Pin interface defines USB signal and 3.3V voltage. The adapter card converts USB interface 5V voltage into 3.3V through LDO chip, supplies module and SIM work, and signal bus is USB signal. Mini PCI-E design meets industry specifications for version 1.30 The adapter card is suitable for full-height (30*50-51mm) 4G/3G modules (USB bus) Working status LED real-time display Scope of application: Suitable for most 3G/4G modules, it can also be used for Internet access and module brushing, debugging, testing and unlocking via USB port. Package Includes: 1x Mini PCIe WWAN Card to USB Adapter SKU: ALU0014352263022483.1x Mini PCIe WWAN Card to USB Adapter. Increase the distance between the SIM card holder and the rear panel components. Mini PCI-e to USB adapter card, which adds a lock for the fixed module, which is convenient for users to install and improve the reliability and stability of the module.