Sobib : Latitude E5440, E6440, E6540, E7240, E7440, Precision M3800, M4800, M6800. Dell P/N 7W5P6
Made by Sierra Wireless for DELL the Airprime Qualcomm 4G Card can transfer data up to 42Mbps. Speed: DC-HSPA+, HSPA+, HSDPA, HSUPA, WCDMA, GSM, GPRS, EDGE, and GNSS operation