“Overview The iMac “”Core i5″” 2.5 21.5-Inch Aluminum (Mid-2011) is powered by a Quad Core 2.5 GHz Intel “”Core i5″” I5-2400S processor with a dedicated 256k level 2 cache for each core and a 6MB shared level 3 cache. In lieu of a system bus, it has “”Direct Media Interface”” (DMI) that “”connects between the processor and chipset”” at 5 GT/s. By Defualt, it is configured with 8GB of RAM, a 500GB har drive, a verically-mounted slot-loading DVD R “”SuperDrive””, and AMD Radeon HD 6750M graphics with 512MB of dedicated GDDR5 memory. Specifications Processor: Intel Core i5-2400S 2.50GHz Memory: 8GB DDR3 Hard drive: 500GB Optical drive: Super-Drive Operating system: OS X 10.9 4x USB 2.0 1x FireWire 800 1x Ethernet 1x Audio-in 1x Audio-out 1x Microphone (Built-in) 1x ThunderBolt Package contents Apple iMac 21.5″” A1311 Keyboard Mouse Power Cord”

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