The is the 3DS development Kit known as the IS-SNAKE-BOX by Intelligent Systems,

This was an updated debugger to the PARTNER-CTR kits, which ran 3DS “Standard Applications”, where the Snake-Box ran “Extended Applications” for increased performance.

(Further details to be updated…)

Below is a Link to a Twitter post I made a while back, with a little 2 Min video montage (360 pan) of this beauty 3DS Dev kit. Check it out! 😛

https://twitter.com/_BehindTheCode/IS-SNAKE-BOX

Cheers!

-Gerry