Available now (handled by our partners BetaGamma Computing in Greece). Please allow for shipping and processing delays due to bad weather in Corfu. UK customers MUST e-mail us first about ANY upgrade/repair work (except NI).
All repair/upgrade 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.
Retro GEM GC is the ultimate AV upgrade for your classic Nintendo Gamecube console. Free yourself from expensive component cables and analogue only connections with this cutting edge solution. Retro GEM 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 Retro GEM uses a Mini HDMI port.
Built in scaling – Optional line double or triple of 240p and deinterlacing of 480i/576i for all region games. Retro GEM handles all the signals the GameCube can output and ensures compatibility with modern displays. Full pass through mode is also available for users with external scalers or DACs. Note that the version that will be installed with this service is the Retro GEM basic, this can be upgraded to the Shiny version at any time by simply purchasing an unlock key from PixelFX. Retro GEM basic is ideal for users who already have upscalers, such as the OSSC Pro or PixelFX Morph. For more information, see this page.
OSD control – Access Retro GEM’s settings from a convenient OSD which works via a standard Gamecube controller. To activate the OSD, hold the L, R, X and Y buttons down until the menu appears.
GameID – The Retro GEM board can communicate with the Morph4K and send information on the current game being played, allowing for the scaler to automatically apply presets. Prefer scanlines for 2D games and smoothing for 3D games, no problem, just create your preferred auto preset for any game you like (requires Swiss or other compatible game launcher).
The Retro GEM upgrade powers up your classic console with a fully digital HDMI output port that supports both video and audio. All Gamecube screen modes are supported, 240p can be line-doubled to 480p for full HDMI compatibility, while interlace modes can be either line doubled or sent directly to the display. Retro GEM features less than 1 frame of input lag in all processing modes, line double and pass through modes are lag free (no more than a few ms).
Retro GEM is compatible with all GameCube consoles, including those without a digital video output port.
If you prefer to DIY fit your Retro GEM, click here.
Nintendo and Gamecube are trademarks of Nintendo Co., Ltd. RetroGEM is NOT an official Nintendo product.







Timothy Joyce –
For quite a long time I was eager to improve the picture quality on my GameCube and living in the UK it’s easier said than done. I decided it would be far too costly to achieve so I gave up on it eventually. That is of course until Nintendo Life reviewed this newly released mod and gave it top marks, so I decided I would have to try it. I can safely say that anyone who wants to up the ante and upgrade their GameCube should buy this mod. The picture quality is astounding especially when you compare it with an RGB scart cable, the two simply don’t compare! I tested a number of PAL region games such as Soulcalibur II, Super Mario Sunshine and Skies of Arcadia Legends and all of them showcased enhanced detail and cleaner pictures overall. Not to mention the improved audio fidelity which is instantly noticeable on first hearing. Customer service was exemplary, all my emails got a quick response and I was given regular updates too, top notch! I am also very pleased to see that the price of the mod has also come down in price substantially making this the definitive option over the component cable (which tend to go for some pretty high pennies on ebay). Yes if you live in the UK or anywhere else where your GameCube games don’t support 480p then invest in this mod, you won’t regret it.
Admin response – Thanks for the kind review! Please note that this mod only performs a simple line-double for 480i games so it’s no substitute for actually running Gamecube software in 480p.