Support M.2 Socket SSIC-based WWAN Module.
First Impression
M.2 stands for Next Generation Form Factor which is invented for PCI-SIG by Intel and it is developed for flat and high-efficiency
equipment such as Ultrabook or Tablet PCs. It is a natural transition from the Mini Card and Half Mini Card to a smaller form factor in both size and volume
which supports multiple function add-in cards/modules including: Wi-Fi, Bluetooth, global navigation satellite systems, near field communication,
Hybrid digital radio, wireless gigabit alliance (WiGig), wireless wide area network and solid-state storage devices. Also adds functionality to USB 3.0,
display Port, SDIO and SSD-PCIe The M2MU2 adapter is designed for desktop/Laptop PCs that convert 3G wireless M.2 Card to full/half mini card slot. 
You can insert your M.2 card (Socket 2 SSIC-base WWAN) such as GSM, HSPA(3.5G), GPS, LTE cards to this adapter then plug to USB port through USB cable. 
Function 
Allows user to use M.2 Socket SSIC-based WWAN Module to mPCIe Slot in the Desktop or Laptop. 
Supports USB interface of M.2 Cards (Socket 2 SSIC-base WWAN) such as 2G GSM, GPRS, 3G,CDMA, WLAN,WWLAN, HSPA MODEM , GPS, 4G WiMAX, LTE, Mini Card to desktop PC. Support Full size and half size mPCIe slot
Specifications
USB M.2 Card to mPCIe adapter. 
M.2 Specification Revision 0.9
Universal Serial Bus Specification Revision 2.0
Support 2230/2242 M.2 Card dimension. 
Support M.2 Socket SSIC-based WWAN Module. 
Support M.2 Key B Card Type. 
System Requirement 
Mini PCI-E slot
Windows 2000, XP, Vista 32/64, Windows 7, Windows 8 or Linux