@jibsaramnim
Its been quite the journey to find out. I kown for years its possible to take the pif from one consol and switch between two of them, but its always been a bit janky and not a whole lot of documentation on it.

I learned while reading the install instruction for the #UltraHDMI that it could sync some clock with the #UltraPIF eventualy I managed to find a blogpost on #RetroRGB about it and was possible to buy, but well. Shipping been a challange

RT @_BehindTheCode
🚩N64 UltraHDMI GIVEAWAY🚩

Winner Receives a Premoded Nintendo 64 with #UltraHDMI kit + Analog RGB board!

To enter perform all 3 steps bellow:
1⃣Subscribe to my YouTube https://www.youtube.com/@BehindTheCode001
2⃣Follow me on Twitter
3⃣ReTweet

http://Twitterpicker.com draws Winner on Mar/31/2023

RT @_BehindTheCode
>>> N64 UltraHDMI GIVEAWAY <<<

Prize Winner:
Receives a Premoded Nintendo 64 with #UltraHDMI kit + Analog RGB board!

To enter perform all 3 steps bellow:
1. Follow me on Twitter
2. Like this tweet
3. Re-Tweet this Tweet

http://Twitterpicker.com determines Winner on Feb/20/2023

RT @_BehindTheCode
>>> N64 UltraHDMI GIVEAWAY <<<

Prize Winner:
Receives a Premoded Nintendo 64 with #UltraHDMI kit + Analog RGB board!

To enter perform all 3 steps bellow:
1. Follow me on Twitter
2. Like this tweet
3. Re-Tweet this Tweet

http://Twitterpicker.com determines Winner on Feb/20/2023

N64 Advanced 2 #N64Adv2 by #Borti aka Peter: #N64Digital or #UltraHDMI alternative? Let's find out... #N64

Suite à l'annonce d'une seconde version de l'#UltraHDMI il y a un an et demi, la production du premier à cessé, vous étiez en attente de vous en procurer un, sachez que le #N64Digital fait la même chose.
https://www.marseillenews.net/technologie/gaming/le-n64digital-de-pixel-fx-promet-une-video-hdmi-cristalline-pour-votre-nintendo-64-140887.html

Comparaison la qualité d'image d'une #Nintendo64 via sortie composite et via #UltraHDMI :