2009 27" imac.
1tb HD,
4gb Ram
Fresh install of Yosemite
Fair condition, except for the right side of the screen, it was carelessly moved once upon a time. Barely noticeable, but it is there, hence the low price.
Solid machine! But, it turns out, once you go mac, you can go back.
550 obo
Full specs here
https://support.apple.com/kb/SP696?locale=en_GB