I have an iMac 2007 aluminum which I don't use it anymore and I also have an upgraded MacMini - late 2012 (16 GB 1600 MHz DDR3 - processor 2.3 GHz Intel Core i7) which is my main computer. I'd like to use my old iMac as a second screen but I'm not sure which kind of cable should I use it. Can anyone help me out?
