for a few years WD made the Raptor series. Not sure what the market intention was, and I do remember them being on the market.
But, I dont know if they still make them, I doubt it.
Personally, I thought they were made for the gaming crowd. Why? Well at the time, clear case PCs, with tons of lights and neon CCFLs, etc were all the rage, whereas its not much anymore. Ill admit it, at one time I thought a PC with plexiglass covers and tons of lights were cool, and nowadays, I dont really care.
These drives were made during that time period.