Wiidual HDMI and RGB mod kit fitting service

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  • Wiidual HDMI and RGB mod kit fitting service (reserve list only)
  • Wiidual HDMI and RGB mod kit fitting service (reserve list only)
EUR256.82 price includes VAT
EUR208.80 price excluding VAT

Available now! (handled by our partners BetaGamma Computing in Greece)

All our Wiidual installs now use boards with the latest, updated firmware.

All repair/modification work is carried out subject to our terms and conditions. Once you have placed your order, details of where to ship your hardware will be sent to your e-mail address. Prices do NOT include return postage.

Important – Please check compatibility information before ordering!

The Wii was (and still is) an amazing console with a huge library of amazing games in lots of different genres. Rather than try to compete with Microsoft or Sony, Nintendo designed the Wii to be as cheap and cheerful as possible. Unfortunately, that means its video output options were limited to a rather sub-par component video at best, that is until now.

Wii Dual is the ultimate AV upgrade for your classic Nintendo Wii console (RVL-CPU-40 revisions and later). Set your Wii free on your modern HDTV or classic high end CRT monitor with this all in one solution. By ordering this modification and sending us your Wii console, we will professionally install and test the Wiidual HDMI and RGB kit for you. The price above includes supplying the Wiidual kit, installation and testing.

WiiDual adds the following features to your classic console:-

HDMI output – Full HDMI output including audio, with optional line doubling of 240p/480i sources and optional scanlines. Note that WiiDual uses a Mini HDMI port.

Full analogue output – Output ANY Wii resolution via the standard analogue port. Need 480p via SCART for your OSSC or XRGB Mini? No problem! It’s also possible to get RGB output for NTSC consoles.

Analogue and digital output active at the same time – Stream via HDMI while you game lag-free on your CRT like a pro. Note that the same resolution will be output on both analogue and digital at all times.

OSD control – Access WiiDual’s settings from a convenient OSD which works via a standard Gamecube controller or by means of a universal remote control. To activate the OSD, hold the L, R, X and Y buttons down until the menu appears.

The Nintendo Wii WiiDual upgrade sets your Wii free with a fully digital HDMI output port that supports both video and audio. All Wii screen modes are supported, 240p/288p can be line-doubled to 480p/576p for full HDMI compatibility, while interlace modes can be either line doubled or sent directly to the display. All line-doubling is done on the fly, there’s no frame buffer and therefore no input lag. 

Some thought it would never happen, given the famously compact nature of the Wii console, but our friends over at Black Dog Technology have proved everyone wrong!

To learn more about this fantastic mod, check out retroRGB’s extensive video review here:-



In order for your Wii to be compatible with this mod, it MUST be a RVL-CPU-40 revision or later. Specifically, the following motherboard revisions are supported:-

  • RVL-CPU-40
  • RVL-CPU-50
  • RVL-CPU-60
  • RVK-CPU-01 (No Gamecube Ports)
  • RVK-CPU-02 (No Gamecube Ports)
To determine which revision you have please see the picture below (click or tap the picture to enlarge it). Please note that if you send us an incompatible console, we will not be able to carry out the modification work and unfortunately we will have to charge you for return postage.
This mod provides audio and video through the HDMI cable, but a very small number of HDTVs may be incompatible with audio/video mode. In this case, audio can be disabled through HDMI and routed through the consoles analogue output to a suitable receiver as normal.


  • How do I bring up the OSD? – Attach a Gamecube controller and hold down Left Trigger + Right Trigger + X + Y. Alternatively, use a universal remote. Hit the button on the back of the console to pair a remote.
  • The OSD will not come up with the Gamecube controller? Make sure the Gamecube controller is plugged in before turning the Wii on.


Nintendo and Wii are trademarks of Nintendo Co., Ltd. WiiDual is NOT an official Nintendo product.

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