21.5-inch: 2.7GHz Specifications 2.7GHz quad-core Intel Core i5 Turbo Boost up to 3.2GHz 8GB (two 4GB) memory 1TB hard drive Intel Iris Pro graphics Processor 2.7GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.2GHz) with 4MB L3 cache Memory 8GB (two 4GB) of 1600MHz DDR3 memory Configurable to 16GB. Storage 1TB (5400-rpm) hard drive Configurable to 1TB Fusion Drive or 256GB or 512GB of flash storage. Graphics Intel Iris Pro graphics Video Support and Camera FaceTime HD camera Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display Support for extended desktop and video mirroring modes Support for Target Display Mode via the Thunderbolt port using a Thunderbolt to Thunderbolt cable (sold separately) Connections and Expansion SDXC card slot Four USB 3 ports (compatible with USB 2) Two Thunderbolt ports Mini DisplayPort output with support for DVI, VGA and dual-link DVI (adapters sold separately) 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) Kensington lock slot Input Apple Wireless Keyboard Full-size keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted "T" arrangement) Magic Mouse Smooth, seamless Multi-Touch surface with support for simple gestures (scrolling and swiping). Click and double-click anywhere. Ambidextrous construction accommodates left- and right-handed users. Magic Trackpad Glass Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch and expand, swipe, three-finger swipe, four-finger swipe, tap, double-tap, rotate, screen zoom, scroll, click and drag, click drag and lock, secondary click A and B Wireless Wi-Fi 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible Bluetooth Bluetooth 4.0 wireless technology Audio Stereo speakers Dual microphones Headphone port Headphone/optical digital audio output (minijack) Support for Apple iPhone headset with microphone Electrical and Operating Requirements Line voltage: 100-240V AC Frequency: 50Hz to 60Hz, single phase Operating temperature: 50° to 95° F (10° to 35° C) Relative humidity: 5% to 95% noncondensing Maximum operating altitude: tested up to 10,000 feet
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