Features: L850-GL is M2- form factor high-end LTE wireless commumication module which support LTE-FDD，LTE-TDD, WCDMA. Adopting M2- interface with a size of approx 30x40x2.3mm，widely used in consumer electronics laptop tablets With downlink speed of up to 450Mbps and uplink=speed of up to 50Mbps. L850-GL is the perfect cellular solution for world traveler devices that need top connectivity-speed anywhere LTE is present. It is a top application choice for you to upgrade- forThinkPad from lower speed modules. Specifications: Model:L850-GL 4G LTE for Laptop Measurement:approx 30x40x2.3mm/1.18x1.57x0.09in FRU# 01AX792 Max-Transfer Rate: 450Mbps Cellular Protocol: LTE Designed For THINKPAD-X280-TYPE-20KF-20KE THINKPAD-X1-CARBON-6TH-GEN-TYPE-20KH-20KG THINKPAD-T480-TYPE-20L5-20L6 THINKPAD-T480S-TYPE-20L7-20L8 THINKPAD-T580-TYPE-20L9-20LA THINKPAD-P52S-TYPE-20LB-20LC THINKPAD-X1-YOGA-3RD-GEN-TYPE-20LD-20LE-20LF-20LG THINKPAD-X380-YOGA THINKPAD-L480-TYPE-20LS-20LT THINKPAD-L580-TYPE-20LW-20LX THINKPAD-P52-TYPE-20M9-20MA THINKPAD-A485-TYPE-20MU-20MV THINKPAD-A285-TYPE-20MW-20MX Package Includes: 1PC x L850-GL LTE 4G- Network-Card 2PCS x Built-in Antennas note: Due to the light and screen difference, the item color may be slightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement.