Older desktop mid-tower computer (no OS installed). Everything works; previously had Windows XP, MAY support Windows 7. This would be a good computer for people with older, vintage games that don't run on the new systems, or for some of the parts. From a non-smoking home with no kids or pets. This has a screwloss In-Win case (very nice case) with 350w PS and 120mm case fan, Intel Pentium 4 CPU, Intel DG35EC LGA 775 motherboard, 2GB Crucial PC5300 memory, DVD re-writable drive, 3.5" floppy, 3.5" internal memory card ready, dual 256 Western Digital SATA hard drives.