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MiSTer Digital IO Board v1.2


Fully assembled MiSTer FPGA Digital IO Board v1.2 provided with a standard low noise fan, or an optional premium Noctua fan.

(14 customer reviews)

The MiSTer FPGA Digital IO Board v1.2 provides the following features, a dedicated power switch to turn the unit on and off with over-voltage protection, a 3.5mm audio jack for ADC In (Tape Input) a separate ADC-In addon board is not required, 3.5mm Mini-TOSLINK & Digital TOSLINK Connectors, a secondary microSD card slot the functionality depends upon the core being used, a fan speed control jumper providing 3.3 volts or 5 volts, three status LEDs (red, yellow, green), three large push buttons providing system reset, on screen display menu and game reset, an expansion connector in the form of a USB 3.0 connector however this is not for standard USB devices.

The MiSTer I/O Digital Board v1.2 includes a jumper for 3.3v or IO selection on the User IO port. Selecting IO provides support for Sega Mega Drive / Genesis / Master System game pads using a SNAC adapter board.

Once assembled each MiSTer FPGA Digital IO board is inspected under a microscope to ensure no solder bridges are present, the completed version 1.2 Digital IO board is fully cleaned in an ultrasonic bath to remove any flux residue left over from assembly, once clean the IO board is fully tested on a live MiSTer setup. Each IO board uses high quality branded components including Samsung Electro-Mechanics and Microchip Technology.

SW3 on the DE10-Nano board must be set to the ON position for the Digital IO board to function.

✅ Suitable For Terasic DE10-Nano FPGA Board
✅ MiSTer FPGA Project Official Addon Board
✅ Includes Quiet Fan or Noctua NF-A4x10 Fan
✅ Built-In On / Off Power Switch
✅ Mini-TOSLINK & Digital TOSLINK Connector
✅ 3.5mm For ADC In (Tape Input)
✅ 3 User Buttons & 3 Status LEDs
✅ Secondary MicroSD Slot
✅ User IO Port Connector
✅ Headers For External Push Buttons & LEDs
✅ DC to DC Power Cable Included
✅ Fully Assembled & Tested

Fan Type:

Standard Fan, Noctua NF-A4x10, Fan Not Required

  1. Garry Heather (verified owner)

    An easy way to get physical hardware controls, a power switch and digital audio out of your MiSTer. I had heard of Nat at several times before (mostly on retro themed podcasts) so based on those recommendations it was easy to get my add-ons from here. Everything arrived quickly and well packaged so all I have to do now is figure where my game playing skills have disappeared off to these past 40 years.

  2. spaceflightorange (verified owner)

    My entire MiSTer Stack is now powered by components, the latest being the Digital I/O board and Hub, which are replacing a Faulty Analog board and hub that I bought elsewhere. valuable lesson learned.

    The quality of the components and the service is 2nd to none!

    Thanks Nat!

  3. Bryan M (verified owner)

    I have ordered this a various accessories from Nat. In my opinion, the best place to shop for Mister FPGA stuff. Very quick shipping too…and I live in Ontario Canada. Always a pleasure to shop here and Nat is fantastic. Speaking of which, I need to place another order 😉

    Cheers Nat!!

  4. Harvey L

    Recently got into the MiSTer FPGA and this was one of a selection of items that I brought.

    Everything ordered here arrived very quickly and was extremely well built. I have no skills to be able to build anything like this without damage ( or personal injury ) and having it turn up on your doorstep fully assembled saved so much time and pain.

    Ordered in the UK and delivered in the UK and could not ask for a better service.

    Nat was also very helpful as I was new to the MiSTer and helped me pick the right parts after ordering, we had to swap one item around and this was done at no extra cost.

    Service was that good that when I built a second MiSTer, this site was my default go to place to get the parts that I needed.


  5. Dominic Murray (verified owner)

    Echo every other positive review here on quality.

  6. Morgan Jones (verified owner)

    Excellent. Really well made, ordered with the stock fan. The fan cable has been trimmed to fit perfectly on the board. In addition, the fan is silent – I personally cannot hear it from a couple of feet away. Very pleased. Carefully packed, no bent pins, overall very tidy. Customer service has also been excellent. Thanks Nat!

  7. Sam Hartley (verified owner)

    Really well made, and carefully packed to avoid any bent pins.

    Support is fantastic, always a quick response with useful information.

    Super handy having a supplier in the UK too.

  8. Ross (verified owner)

    A really well made board once again, works perfectly with my setup. Thanks Nat!

  9. Andrew

    Perfect. Well packaged, great product.

  10. Mark Osborne (verified owner)

    As someone who is new to the MiSTer project, I was unsure where to start, even after doing a bit of reading online, I emailed Nathan who responded, told me what I needed, and I went ahead and ordered, the IO board works perfectly and I have since ordered memory, a heat sink and now the USB hub, it helps this store is in the UK as most sellers live in the US so I didn’t have to deal with high postage costs. Highly, highly recommended and my go too for anything I need for MiSTer

  11. Geords

    Fantastic craftsmanship!

    Arrived in NZ very quickly and was beautifully packed.

  12. Felix Andrews (verified owner)

    A high quality that’s a perfect fit for the DE10-Nano – pins lined up perfectly with the headers, meaning even my 100% prime ham fists got this assembled with zero bother. Soldering all seems solidly done, too.

    Customer service from Nat was exemplary – always quick to offer up solid advice if you’re not quite sure what you’re doing. All in all, extremely happy with the product and the service.

  13. Pete (verified owner)

    Great service from Nat. Always replies quickly to all questions (even stupid ones). Nice attention to detail with trimmed fan cables so looks great too. My first Noctua fan. The hype is real. Can’t hear a thing.

  14. Lars (verified owner)

    Superb quality of the board and shipment to Germany was working great. I like the black finishing of the parts. The support from Nathan is also perfect. Many Thanks from my end.

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SKU: MiSTer-FPGA-Digital-IO-v1-2 Category: Tag:

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