Features: The L850-GL is a high-performance LTE wireless communication module with an M.2 form factor that supports LTE-FDD, LTE-TDD, and WCDMA. Utilizes an M.2 interface with a size of approximately 30x40x2.3mm, widely used in laptops and tablets within consumer electronics. Offers a download speed of up to 450Mbps and an upload speed of up to 50Mbps. The L850-GL is the perfect cellular solution for world travelers who need the highest connection speed wherever LTE is available. It's an excellent choice for upgrading your ThinkPad from modules with lower speeds. Specifications: Model: L850-GL 4G LTE for Lenovo Laptop Dimensions: approx. 30x40x2.3mm/1.18x1.57x0.09in FRU# 01AX792 Max Transmission Rate: 450Mbps Cellular Protocol: LTE Designed for THINKPAD 280-TYPE-20KF-20KE THINKPAD 1-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 1-YOGA-3RD-GEN-TYPE-20LD-20LE-20LF-20LG THINKPAD 380-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 Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2 cm differences due to manual measurement. Package Includes: 1 pc x L850-GL LTE 4G Network Card 2 pcs x Built-in Antennas