Silverstone MK1 Button Box

Silverstone MK1 Button Box

Regular price £200.00 (0 left in stock) Sale

Note: Due to other commitments I have to temporarily disable orders. Ordering will be possible again at the beginning of December.


A large button box that fits D shape wheels with diameters between 280 and 350mm. This box features a total of 20 mappable inputs. All boxes come with everything included that you need to get started with your OSW kit.

Free 1st class shipping in the UK and £20 DPD express shipping worldwide.


  • 8 push buttons
  • 2 up/down instantaneous switches
  • 2 rotary encoders + push function
  • 2 N50 Neodymium shifter units (height, reach and throw is adjustable)
  • Modular expansion system
  • 6 shifter paddles (large, medium, small)
  • Compatible with 6 bolt 70mm PCD steering wheels.
  • OSW mounting kit included (5 M5x60mm bolts, 5 nyloc nuts + dummy bolt)
  • 2M USB extension cable
  • Custom control board
  • Compatible with any simulator on PC or Mac. (Including iRacing, Assetto Corsa, pCars 1&2, LFS, Codemasters F1 series, etc.)
  • Designed and made in the UK.


Compared to the previous series of button boxes the MK1 series features a number of improvements:

  • Compatible with expansion modules
  • More comfortable shifter location
  • Better surface finish
  • Stronger shifter magnets
  • Adjustable throw on the shifters
  • Higher quality rotary encoder knobs
  • Improved shifter paddles

Wheel compatibility list

This button box is compatible with:

  • OMP Superquadro 320mm
  • Momo Tuner 330mm
  • Mountney 3 spoke 320mm
  • Motamec Formula 320mm
  • RMD D wheel 320mm 

If your wheel is not listed here, please send me an email at with the wheel name and I can check if your wheel is compatible.


  • Button box
  • 2M USB extension
  • OSW mounting kit (including spacer and bolts)
  • 6 shifter paddles

Videos (Suzuka)


Installation is extremely easy:

  1. Install the OSW 6 hole mount to the motor shaft if not done so already.
  2. Put 1 screw through the steering wheel.
  3. Slide the button box onto the screw.
  4. Slide the OSW spacer onto the screw.
  5. Mount the screw onto the OSW adapter with the provided nyloc nut.
  6. Repeat for the other screws.
  7. Plug the USB extension (if needed) into the button box and then your PC.
  8. No drivers needed, so start your sim of choice and get racing!

How to avoid EMI

With every box, I include one or multiple magnets that can be used to ground the USB extension on the motor mount:

Note: Due to stock levels, the number of buttons of any given colour may vary. Every box is handmade and the shown images are for illustrative purposes only. Your final box might vary slightly.

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