It's a UNIX array board. The guy got it new. (It directly translates to "unsused", so I suspect it might not be NIB. He also mentions that it's dirty.)
It uses NMB switches, which he says feel like cherry blacks. He also brings up some similarities to ALPS switches.
Also, It's an AT keyboard, and was meant as a replacement for the SGI keyboards of the past. Apparently, this is a gaming keyboard.
That's just my ****ty translation. Sorry if anything is wrong.