Feature: 1. High Speed 4G Connectivity: The L860-GL-16 DW5823E-ESIM card module provides your laptop with 4G LTE network speeds of up to 1Gbps, ensuring a smooth online experience even in crowded network environments. 2. Wide Device Compatibility: Specifically designed for Latitude and for Precision series, it supports for Win 10 11 systems, ensuring high compatibility and stability in common system environments. 3. Multi Band Support: The laptop 4G module supports various LTE FDD, TDD, and 3G bands for global network compatibility, allowing you to achieve stable network connections wherever you are, thus enhancing mobile work efficiency. 4. Cost Effective Choice: The 4G LTE module offers an economical solution for users needing stable LTE network connectivity, suitable for various online applications, from video conferencing to online learning. 5. Premium Manufacturing Materials: Made with PCB materials and equipped with an NGFF M.2 interface design, this 4G module ensures durability in demanding environments and provides stable data transmission performance. Specification: Item Type: 4G LTE Module Network Card Material: PCB Interface: NGFF M.2 Network Bands: 4G LTE FDD: B1/2/3/4/5/7/8/12/13/14/17/18/19/20/25/26/28/29/30/32/66/71 4G LTE TDD: B34/38/39/40/41/42/43/46/48 3G WCDMA: B1/2/4/5/8 Network Speed: LTE FDD: 1Gbps (DL), 150Mbps (UL) LTE TDD: 756Mbps (DL), 90Mbps (UL) UMTS: 384Kbps (DL), 384Kbps (UL) HSPA+: 42Mbps (DL), 5.76Mbps (UL) Supported System: for Win 10, 11 Applicable Computer: 4G LTE Module Network Card 7640, for Precision 3480 3580 3581. Package List: 1 x Network Card 1 x Screw