Lenovo 4XC1D51447 network card Internal WWAN 600 Mbit/sThinkPad Quectel SDX24 EM120R GL CAT12 PCIE WWAN Module ThinkPad Quectel SDX24 EM120R GL CAT12 WWAN Module I is a wireless communication module with receive diversity. It helps provide data connectivity and network with standard PCI Express M. 2 interface. With downlink speed of up to 600 Mbps and uplink speed of up to 150 Mbps, the CAT12 WWAN module enhances the network reliability and availability of your ThinkPad, and provides a great cellular