Important: This mod requires N64 disassembly, chassis modification (if not using no-cut mod), as well as micro soldering. It is highly recommended that you are either experienced with these processes or seek professional services to install this mod. The boards have been tested for function prior to shipping. We are not responsible for any damage caused during the installation. Returns or replacement parts are not available for this product.
From the Retroactive site:
Want to play your Nintendo 64 with bit-perfect video and audio, on your modern flat screen? 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 video out mod is included.
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.
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.
Quick Start Guide
Installation Guide
More info on install of HW2 variants and RGB addon can be found here
Please watch Makho's video and check the description for more information!