Used this as a loaner when production units would go down, and this one was rarely in the mix. As such, it is like new, in the box. I believe it is an R4600 w/ 128 MB Ram with either IRIX 5.2 or 5.3 on a 1GB SCSI drive. It comes with all the standard SGI accessories. Keyboard, mouse, IndyCam, etc... And a 17" SGI trinitron monitor that is also like new. Just looking to clean out my spare parts room, so make an offer. Thanks! If you are interested, I can get more specifics, including some digital pics for you.