A. Case is designed for A.87 PCB (PCB made by OTD community)
B. Uses PS/2 and USB.
C. Black or Silver Housing. Red, Silver, or Black plate.
D. 84, 86, or 87 key layout.
This is one of my other favorite boards. It was designed by Korellas from OTD.
There is a special version with the Inserted Brass Bar which is really rare.
Korellas is one of the top designer in the OTD community.
Many of you might be familiar with this keyboard because someone in the Chinese community copied the board almost exactly.