This is the new Quadscan Elite rackmount, which means it does not have a separate power unit. The power unit is enclosed with the processor. It comes with rackmount ears, which can be removed very easily. I purchased the unit very recently and it has only about 10 to 15 hours on it. It is in perfect condition, and I have the manual and all accessories. The input filter has been removed by Focus Enhancements to improve the sharpness of the picture, especially on CRT and other displays. I am asking $1200, as the rackmount version costs $100 more than the desktop version. If interested, please email me.