The Crystal Eop-G is the strangest and cleverest thing KOJO makes: a virtual earth built into a plug-sized cylinder. Inside, eight supercapacitor-derived elements, their electrodes etched into a sponge-like structure and packed with porous activated carbon, present an effective conductor area of about 80 million square centimetres. KOJO's own comparison is a soccer field, and it is barely an exaggeration.
It plugs into any spare outlet on your wall or power tap and connects only to the earth line (the current-carrying blades are inert ABS; only the earth pin is conductive). From there it strengthens the ground reference for the entire system at once, where box-type earths work one component at a time. Units screw together end-to-end if you want to double or triple the area, and the leftover caps combine into a spare-outlet dust cover. Designed with Yuki Seimitsu, a precision shop that builds satellites.
One per system is the starting point. If you already rate KOJO's Crystal E boxes, this is the system-wide version.
- Plug-in virtual earth for a spare outlet (NEMA 5-15 pattern)
- 8 supercapacitor-structure elements, approx. 80,000,000 cm² effective area
- Earth pin only is conductive; no voltage on the blades
- Units link together for multiples of the surface area
- Leftover parts form an outlet protection cap
