PiJack - Ethernet for Raspberry Pi Zero


OUT OF STOCK! More coming soon.

PiJack is a HAT (yes, a proper HAT, not a pHAT!) add-on board for the Raspberry Pi Zero mini computer that makes connecting your Pi Zero to the Internet via Ethernet super simple. It's now shipping!

Fed up with flaky WiFi? Want your Pi Zero to be online all the time? This is for you!

PiJack is a neat little board with an Ethernet controller and standard RJ45 connector so you can hook your Pi up to your home or office network using standard Ethernet cables. PiJack is ready to go, there's no special software or drivers to install, it works out of the box with Raspbian, you simply attach PiJack to your Pi's GPIO header and plug it in!

We've put a lot of effort into making PiJack a high-quality product. It's well engineered and uses high quality components and connectors (that won't snap off the first time you use it!). PiJack is built in the EU, at a company in Slovakia that specialises in making electronics for cars. PiJack is made in the same factory as parts for BMW and Audi! We test every board to make sure it'll work for you first time.


  • 10Mbps Ethernet connection
  • Two blinky LEDs for connection status
  • HAT-standard-compliant EEPROM makes setup automatic, works straight away with Raspbian!
  • Uses the Pi Zero's GPIO pins, your USB connector is still free for something else!

Frequently Asked Questions and Answers:

Q: Which operating system supports the PiJack?

A: We use and test with Raspbian - any Raspbian released after November 2015 will do the trick but there are some bug fixes in the latest version so, the newer the better! We recommend you update your existing installation first (sudo apt-get update && sudo apt-get upgrade), or use a fresh installation of Raspbian to make sure you have the latest version, see our set up guide.

Q: Where do I get drivers? How do I install them?

A: Don't worry, Raspbian includes the driver you needs, and as PiJack has a configuration EEPROM on-board your Pi will automatically detect PiJack and load the driver for you!

Q: How does PiJack connect to my Raspberry Pi?

A: PiJack simply plugs into your GPIO header pins. PiJack is powered from your Pi's power supply, so there are no other cables or connections to worry about. This means that your Pi's USB port is still free to use for something else.

Q: I can get generic Ethernet board like that from China for half the price! Explain that!

A: Yes! That's very true! We've tested some of these boards and while they might work OK, they need you to wire up the board to your Pi, and change config files before they'll work. Then you'll have a jumble of boards and wires to hold together. These boards use cheap components and some of them are poorly built. They use the Pi's onboard voltage regulator, so they're sucking power from your Pi and might cause problems later.

PiJack is a quality product, ready to go, fits perfectly on your Pi and is properly engineered for reliability, so it's a different kettle of fish entirely. Our design has been tested and proven on expensive Ethernet test gear, so we know it's going to work well. No loose wires! Proper mounting holes! Just much better!

Q: Header pins? Pin headers? Soldering? What's all this about?!

A: Pin headers are the long row of pins on your other, full-size Raspberry Pi. To make the Raspberry Pi Zero cheaper the header pins aren't fitted to the Zero by default. The problem here is that you can't add any HATs to your Pi unless you add the headers yourself. Luckily, this is easy if you have access to a soldering iron.

If you haven't added the GPIO header already, you can order one with your PiJack, just choose the option when you order your PiJack.

Q: Can I enclose the assembled Pi with PiJack in a box?

A: Yes - the Ethernet chip might get a bit warmer, but should be fine - we have been testing PiJack for months enclosed in an ABS case. We recommend a box with air holes to allow the Pi and PiJack to breathe.

Q: Would you like to give any special credits to anyone who helped?

A: Absolutely, we're glad you asked! We'd like to thank our friends at Microchip for their help in making PiJack a reality, the amazing community around Raspberry Pi (including the Foundation, the Raspbian maintainers, Alex Eames of RasPI.TV, Marek Blasko a.k.a. OM2AMB), KiCAD developers, the Edinburgh Hacklab crew and not forgetting - our partners and family for putting up with us!