brand new and high quality for Ideal for testing the WWAN cards. You don'for t need to break or open your laptop to test your WWAN modules The adapter has integrated with a SIM card slot Very easy to use. No need for extra drivers(Just make sure you have installed the drivers & software for your WWAN card) for Specialized use to Module test and Network. The fixed for latch module for users to install and easy to improve the reliability and stability of the module operation. PCB adds four screw holes, so that this adapter can be used for small industrial chassis. Increase SIM card holder and rear components distance, so that the user removable SIM card is more convenient Working principle: Mini PCI-E52pin Interface definition has USB signal and 3.3V voltage, the adapter make the USB interface 5V voltage converted to 3.3V by LDO, supply power to module and USIM / SIM to work, the signal bus is the USB signal Specifications Description: Product Dimensions: 9.00 * 3.00cm/3.54"*1.18" Mini PCI-E is designed to meet industry specification version 1.30 USB designed to meet industry standards USB 2.0, backward for 1.1 specification This riser card for full-height size (30 * 50mm) WWAN / 3G / WiFi modules (USB bus), corresponding to the half-size (30 * 26.80mm) modules need to be installed to extend the bracket (shop for sale) before you can use Real-time working status LED display The product does not require any software drivers Application: The product is both suitable for many brands of 3G modules, such as for HuaWei, ZTE, AIRCARD, OPTION, , Huayu, Datang and other brands 3G card for Internet access via a USB port and 3G modules Brush, commissioning, testing and unlocking can also be used for USB WiFi module bus (USB bus) and Mini PCI-E interface card (USB bus) via USB to test Quantity:1Pc