1. Specifically designed for 5, HAT+ standard, onboard I2C EEPROM, supports for 40pin GPIO header stack expansion. 2. Onboard 3-way USB 3.2 Gen1 high-speed interface for easy access to more peripheral devices. 3. The onboard M.2 (NGFF) Key B interface supports SIM7600XX-M.2, SIM82XX and RM5XX series 4G/5G modules, and is compatible with 3042/3052 packaging; fan ventilation holes and fan positioning holes are reserved for tree installation. The Berry Pi 5 fan has reserved air ducts to increase air flow and reduce module temperature. 4. The onboard Type-C interface can be connected to a computer for 4G/5G networking, debugging, firmware upgrade, or for external power supply input; wiring is neater and more convenient, and supports top or bottom installation. 5. On-board power monitoring chip, which can measure the voltage, current and power parameters of the module in real time; on-board SIM card slot, suitable for Nano-SIM cards; on-board reset button, power supply and network indicator light, convenient for debugging and viewing the module Working status. This product does not contain 4G/5G modules, users must choose modules by themselves. It is equipped with 5G PCB antenna by default. Specifications:PCIe TO 4G/5G M.2 USB3.2 HAT+ Product type:expansion board Communication interface:M.2(NGFF) Key B/Type-C Power supply voltage:5V Note:The picture is a high-definition rendering.Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use. Colour:As Shown Material:PCB Package Contents: 1 * PCle TO 4G/5G M.2 USB3.2 HAT+ Adapter Board 1 * 5G 4-In-1 PCB Antenna 1 * 16P-Cable-40mm Cable 4 * IPEX 1 Generation to IPEX 4 Generation Adapter (About 13cm) 1Set * Screw Mounting Kit Accessories Only 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.