Features: 1. 4G Module .1 Core Development Board Module Full Network Communication With 2GSTM32 Routine2. The Core Board Is An Electronic Motherboard That Packages The Core Functions Of Mnpc. Most Core Boards Integrate Cpus, Storage Devices, And Pins That Are Connected To The Matching Backplane To Implement A Certain Domain Of Soc.3. Enrich Application Documentation, Video Tutorials And Test Routines, And Update Them Synchronously4. Dedicated At Debugging Tool, Convenient And Fast5. Online Full Technical SupportDescription:1.Product Name: 4Gcat1 Core Board2.Product Model:-mcore-a7670CX3.Package Type: Pin Type 7pin (2.54mm)4.Power Supply: 5-16v DC5.Serial Port: Ttl Level (Default 3.3V)6.Antenna Interface: Ipex Mount (1st Generation)7.Sim Card Interface: Clamshell Type Nano Sim Card Holder8.Led Light: Power Indicator, Network Indicator9.Dimensions:2.8 x 2.6 x 1.24cm (Including Pin Height)10.Working Temperature: -40C-85C11.Network Frequency Band: Lte-Tdd: B34/B38/B38/B49/B41; Lte-Fdd:B1/B3/B8; Gsm/Gprs:900/1800mhz12.Function: Data Transfer13.Color: As Shown14.Material: plasticPackage Contents:1 Set 4G Core Development BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.