Raspberry Pi 3G/4G & LTE Base HAT

Rated 5.00 out of 5 based on 5 customer ratings
(5 customer reviews)

As soon as you insert 3G/4G & LTE mini PCIe modules, this Base HAT becomes a bridge between Raspberry Pi and the modem. This cellular HAT provides simplified data connection for remote IoT projects, on the field, across the globe, everywhere. Start using a high-speed LTE connection with low power consumption in a slim form factor with all necessary software for Raspberry Pi. You will definitely need to get a miniPCIe module to make it work.


444 in stock

Sixfab SIM

Sixfab SIM is a cellular connectivity solution for connecting your IoT devices with the best global networks. You can activate and use your SIM card in a few minutes, without any contract or commitment.


The Sixfab 3G/4G & LTE Base HAT grants your Raspberry Pi or 40-pin Pi compatible single-board-computer a super-simple interface bridge between mini PCIe cellular modems. With the modems you insert into Base HAT, your Raspberry Pi based projects will access data networks all around the world. This Base HAT enables high-bandwidth cellular connectivity on your remote devices. From low-power consumption LTE-M to ultra-high-speed LTE-Advanced mini PCIe cards supported by this HAT. Both UART and USB communication with modules are available on the shield.

Remote management of your devices on the field, secure connection over the mobile network, reliable coverage across the globe with lots of carrier options are available with this HAT stacked on the Raspberry Pi. It can be used as an LTE modem or dongle. If you’re looking for a Raspberry Pi LTE HAT for applications like Raspberry Pi video streaming or high-speed data transferring, you are at right place. This add-on board allows you to create a remote controllable LTE Wi-Fi Hotspot, high-speed GPS tracking and more.


FAQ Complete Documentation Ask a Question


  1. Fully compatible with Raspberry Pi models that have the 40-pin GPIO header (4, 3, 2, B+, A+, Zero)
  2. Easy-to-use, simple setup, plug-and-play
  3. QMI and PPP are supported
  4. Clip-in Mini PCIe socket compatible with worldwide LTE, UMTS/HSPA+ and GSM/GPRS/EDGE coverage with regional or global modules which work with different frequencies & carriers
  5. With the 4G/LTE Module(e.g Quectel EC25) you can reach 150Mbps downlink and 50Mbps uplink data rates. And the 3G Module( e.g Quectel UC20) delivers the maximum data rate of 14.4Mbps downlink and 5.76Mbps uplink.
  6. Micro SIM Card socket is easily reachable on the upside of the HAT.
  7. Can be used standalone with PC/Laptop over micro USB, without stacking with Raspberry Pi.
  8. The HAT can be powered from an external 5V source by exposed power pins, directly from Raspberry Pi 5V GPIO headers, via micro USB, or optional JST connector on the bottom of the board. A specially designed 90-degree right angle micro USB cable is included to package.
  9. Efficient and low quiescent current power circuit can hold up to 3Amps
  10. Optional Send/Receive AT commands over Raspberry Pi UART port is available
  11. Taking the module into the Airplane Mode, resetting module or RI and DTR functions can be accessible over GPIO pins.
  12. The power of the whole board electronics can be disabled for low-power consumption use cases
  13. The modules(EC25&UC20) have built-in GNSS(GPS/GLONASS) receiver for your location-based applications.
  14. Working temperature range: -25°C ~ 70°C

Key Applications

  1. Video/Music Streaming
  2. Large Data Downloads and Uploads
  3. LTE Dongle/Router
  4. Mobile Internet Hotspot
  5. High-speed GPS Tracking
  6. Real-time Environmental Monitoring
  7. Smart City & Agriculture Applications
  8. Smart Parking
  9. Security & Asset tracking

Header Options

Raspberry Pi Base HAT Header Options

The HAT comes with built-in SMD header acceptable and two headers with different lengths included in the package by default. You can choose the right version for the project and stack and use it immediately without soldering it.

  1. Long Header: If you plan to attach another Raspberry Pi HAT or add-on board on top of the Base HAT, you will definitely need this variation. Also, using GPIOs with jumper cables is possible with these male headers. If you need to stack another shield on top of Base HAT or still need to use GPIOs, the long header will be useful.
  2. Short Header: In case you need the HAT as slim as possible, the short header will work like there is no header added length above the Raspberry Pi.
  3. Without Header: If just the plugging Base HAT via micro USB cable to Raspberry Pi is enough for you, or you’ve already attached a bulky shield on Pi, or you don’t need UART communication or IOs, headerless HAT works greatly. To find out what you are missing without headers, take a look at the Pinout Diagram of the HAT, these pins will be unconnected.



Package Includes

  • 1x Sixfab 3G/4G&LTE Base HAT
  • 1x 90-degree Right Angle Micro USB Cable
  • 1x Long Header
  • 1x Short Header
Note: The 3G/4G-LTE Mini PCIe modules are not included.


United States: FCC Part 15 Class B

Canada: ICES-003 Class B

Europe: CE, RoHS, Safety

5 reviews for Raspberry Pi 3G/4G & LTE Base HAT

  1. Rated 5 out of 5

    Stefano (verified owner)

    Works very well with EC25 module on a Raspberry pi 3B+
    PPP connection very good in Italy with Vodafone carrier (APN:!
    Very important: Remove the PIN code of the SIM before using!

  2. Rated 5 out of 5


    Awesome hat.
    Using this hat with the EC25-E I get coverage where phones fail! I have used this without problems in the UK, FR, GER and the USA. I was not expecting it to work in the USA, but it did while using a UK Simm. Sixfab products are made very well.

  3. Rated 5 out of 5


    One of my favorite. Works with UC20G and EC25. Congrats guys.

  4. Rated 5 out of 5

    Tim Gardner

    Great Hat to work with Raspberry Pi for a mini-PCIe module for 4G connection. Really nice build quality. And will work with other modules too – not just the ones on the website.

  5. Rated 5 out of 5

    issDaemon (verified owner)

    Using this with the EC25-A, the sixfab power/ups hat and a Pi 4B+ and it works great! Another great product from sixfab!

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