Want to play your Nintendo 64 with bit-perfect video and audio, on your modern flatscreen? This is for you!

The kit goes inside your N64 and connects directly to the RCP, capturing video as digital RGB, optionally adding processing like hybrid scanlines and crop/fill, producing up to 1080p HDMI output - and even 1600x1200.

The quality blows away the older composite and RF connections. It really makes a huge difference on LCD TVs!

With the newer HW2 revision, analog RGB and component video out is an optional add-on.

Composite output (best TV)
HDMI output (all TVs)

UltraHDMI is designed to connect to modern TVs and monitors. It generates several different resolutions, and like all the other options, can be configured with the on-screen menu.

  • Video: 60hz and 50hz modes
  • 1080p
  • 720p
  • 640x480, 720x576, 1600x1200
  • Audio: 48KHz, 16bit digital PCM

All the settings are configurable with an on-screen menu overlay that can be accessed during a game with a button combo.

Every aspect of operation is fully configurable. Just want to play games? It works fine from the get go. Power users can tweak every setting to their liking.

Optionally, it can apply a set of retro filters to make it "feel" more like a tube TV: scanline bleed, nonlinear brightness curve, HV anode sag...

No matter what processing and features you've turned on, lag averages 1 frame (16ms), and optionally can be reduced to a lightning-fast 1ms with a special Zero Lag mode compatible with many TVs.


I don't sell the kit directly, because installing it requires soldering skill.

Instead, UltraHDMI is available from a number of installers who either provide installation or support.

Because it is sold directly in bulk, final pricing depends on the seller.

Installation is a bit fiddly

UltraHDMI cannot add more detail or resolution than the N64 already generates. It can't fix blurry textures, or add polygon detail.

What you will get is a pixel perfect image of what the game produces, before it got smeared into analog TV goo.

Use both plugs at once

UltraHDMI works in all revisions of Nintendo 64s produced, with only minor install differences.

Installation does not affect the console's original video output, and both can be used at the same time. HW2 brings analog support which routes RGB/YPbPr component video to the original MultiAV port.

© 2015-2021 Retroactive
"Nintendo" is a registered trademark of Nintendo of America Inc. Nintendo 64 is a registered trademark of Nintendo Company, Limited.