Gamebox Systems
Gamebox systems LLC are a US based small business dedicated to creating elegant hardware, retro gaming console upgrade kits, and accessories.
The company is run by Elliot (aka Nobble) and Aaron (aka Postman), more details on them and the companies offering can be found at their website
They are probably best known for Game Boy consolizer mod kits, and more recently the 64HD HDMI DIY upgrade mod kit, which gets HD out of your 64 console with a custom PCB and some clever accessories, including a quick solder flex and a riser bracket, so that no cuts are needed on the console shell.
Postman and Nobble have some more products in the pipeline so watch out for more great gaming mod products from Gamebox systems!