Excellent condition. The iMac "Core i5" 2.8 27-Inch Aluminum (Mid-2010) is powered by a Quad Core 2.8 GHz Intel "Core i5" I5-760 (Lynnfield) processor with a dedicated 256k level 2 cache for each core and an 8 MB shared level 3 cache. In lieu of a system bus, it has a "Direct Media Interface" (DMI) that "connects between the processor and chipset" at 2.5 GT/s. Connectivity includes four USB 2.0 ports, a Firewire "800" port, built-in AirPort Extreme, and Gigabit Ethernet, as well as an audio capable Mini DisplayPort, which supports an external display up to 30" (2560x1600).