ThinkPad Fibocom L860-GL-16 4G LTE CAT16 M.2 WWAN Module for T14/P14s Gen 4, official Lenovo part number 4XC1M72795. Official Lenovo description: a wireless communication module with receive diversity that provides data connectivity over a PCIe Gen2 M.2 interface, with downlink speed up to 1 Gbps and uplink speed up to 150 Mbps.
Official key details: Fibocom L860-GL-16, embedded eSIM, 4G WWAN module, dimensions 30 mm × 42 mm × 2.3 mm (weight 6.2 g). Interface / hardware requirement: M.2 Key-B. OS requirement: Windows 11. Voltage: DC 3.135 V to 4.4 V, typical 3.3 V. Antenna connector: WWAN antenna × 4, 4×4 MIMO; IPv4/IPv6; firmware update via PCIe.
Official operating range: −10 °C to 55 °C (extended operating temperature −20 °C to +65 °C; storage −40 °C to +85 °C). Humidity 5–95%. One-year Customer Replaceable Unit (CRU) warranty. What’s in the box: the module for T14/P14s Gen 4, and a warranty poster.
Supported bands (official Lenovo listing): FDD-LTE B1/2/3/4/5/7/8/12/13/14/17/18/19/20/25/26/28/29/30/32/66/71; TDD-LTE B34/38/39/40/41 (HPUE)/421/43/48; LAA Band 46 receiver only; WCDMA/HSPA+ B1/2/4/5/8; GNSS GPS/BDS/GLONASS/Galileo. Official note: B42 disabled as of FCC certification now.
