Processor Intel Core i 5 processor 3.4 G Hz quad-core Turbo Boost up to 3.8 G Hz 6MB L3 cache Memory 8GB 1600 M Hz DDR3 Configuration 2 x 4GB Hard Drive 1TB 7200rpm Optical Drive None Software Operating System: OS X Mavericks Air Drop Air Play Dictation Gatekeeper Notification Center Facebook Integration Twitter Integration Multiple Display Support Finder Tabs & Tags i Cloud i Cloud Keychain Dashboard Mission Control Spotlight Search Safari Power Saver App Nap Power Nap Compressed Memory Built-in Sharing Display 27-inch (diagonal) LED-backlit display IPS technology 2560x 1440 resolution support for millions of colours Graphics NVIDIA Ge Force GTX 755M graphics processor 2GB of GDDR5 memory Audio Stereo speakers Dual microphones Headphone port Headphone/optical digital audio output (mini-jack) Support for Apple iPhone headset with microphone Networking WLAN: 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible Bluetooth 4.0 wireless technology Power Supply Line voltage: 100-240V AC Frequency: 50 Hz to 60 Hz, single phase Operating temperature: 10° to 35° C (50° to 95° F) Relative humidity: 5% to 95% non-condensing Maximum operating altitude: 3, 000 metres (10, 000 feet)
Dimensions
Height: 51.6 cm (20.3 inches)
Width: 65.0 cm (25.6 inches) Stand
Depth: 20.3 cm (8 inches) Weight: 9.54kg (21 pounds)3 Interfaces SDXC card slot Four USB (Universal Serial Bus) 3 ports (compatible with USB (Universal Serial Bus) 2) Two Thunderbolt ports Mini Display Port output with support for DVI, VGA & dual-link DVI (adapters sold separately) 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) Kensington lock slot Video & Camera Support Face Time HD camera Simultaneously supports full native resolution on the built-in display & up to a 30-inch display (2560x 1600 pixels) on an external display Support for extended desktop & video mirroring modes Support for Target Display Mode via the Thunderbolt port using a Thunderbolt to Thunderbolt cable (sold separately)