ThinkPad SDX55 5G sub6 M.2 WWAN Module is an industry-leading 5G high-speed wireless module, adopting the PCI Express M.2 Specification 3042 type Key B slot. With downlink speed of up to 2Gbps and uplink speed of up to 150Mbps, it is a top application choice for you to upgrade your PC devices from lower speed modules, and a perfect cellular solution for travelers who need top connectivity speed on the go.