Mac mini Server (Late 2012): 2.3 or 2.6 GHz Core i7 4 GB RAM (16 GB max) 2 1 TB hard drives or 2 256 GB SSDs 4 USB 3.0 ports, FireWire 800, Thunderbolt, and HDMI.Mac mini (Late 2012): 2.5 GHz dual-core i5, 2.3 or 2.6 GHz quad-core i7 4 GB RAM (16 GB max) 500 GB or 1 TB hard drive, 256 GB SSD, or 1 TB Fusion Drive 4 USB 3.0 ports, FireWire 800, Thunderbolt, and HDMI.Mac mini Server (Mid 2011): 2.0 GHz quad-core Intel Core i7, dual 7200 rpm 500 GB drives standard with SSD options, 4 GB RAM (8 GB max), integrated Intel HD 3000 Graphics, 4 USB 2.0 ports, FireWire 800, Thunderbolt and Mini-DVI, dual display support.