Chelsea Online

Processor Intel quad-core Core i7 processor 2.2GHz Turbo Boost up to 3.4GHz  6MB shared L3 cache Memory 16GB of 1600MHz DDR3L onboard memory Hard Drive 256GB PCIe-based flash storage Software Operating System: OS X Mavericks AirDrop AirPlay Dictation Gatekeeper Notification Centre Facebook Integration Twitter Integration Multiple Display Support Finder Tabs and Tags iCloud iCloud Keychain Dashboard Mission Control Spotlight Search Safari Power Saver App Nap Power Nap Compressed Memory Built-in Sharing Display Retina display: 15.4-inch (diagonal) LED-backlit display IPS technology; 2880x1800 resolution at 220 pixels per inch with support for millions of colours Native resolution: 2880x1800 pixels (Retina); scaled resolutions: 1920x1200, 1680x1050, 1280x800 and 1024x640 pixels Graphics Intel Iris Pro Graphics Dual display and video mirroring: simultaneously supports full native resolution on the built-in display and up to 2560x1600 pixels on up to two external displays, both at millions of colours Thunderbolt digital video output Native Mini DisplayPort output DVI output using Mini DisplayPort to DVI Adapter (sold separately) VGA output using Mini DisplayPort to VGA Adapter (sold separately) Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately) HDMI video output Support for 1080p resolution at up to 60Hz Support for 3840x2160 resolution at 30Hz Support for 4096x2160 resolution at 24Hz Audio Stereo speakers Dual microphones Headphone port Support for Apple iPhone headset with remote and microphone Support for audio line out (digital/analog) Input Devices Full-size backlit keyboard with 78 (US) or 79 (ISO) keys, including 12 function keys and four arrow keys (inverted “T” arrangement) with ambient light sensor Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch, rotate, swipe, three-finger swipe, four-finger swipe, tap, double-tap and drag capabilities Networking 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible Bluetooth 4.0 wireless technology Power Supply Up to 8 hours wireless web Up to 8 hours iTunes film playback Up to 30 days standby time Built-in 95-watt-hour lithium-polymer battery 85W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port Line voltage: 100V to 240V AC Frequency: 50Hz to 60Hz Operating temperature: 10° to 35° C (50° to 95° F) Storage temperature: –25° to 45° C (–13° to 113° F) Relative humidity: 0% to 90% non-condensing Operating altitude: tested up to 3,000 metres (10,000 feet) Maximum storage altitude: 4,500 metres (15,000 feet) Maximum shipping altitude: 10,668 metres (35,000 feet) Dimensions Height: 1.8 cm (0.71 inches) Width: 35.89 cm (14.13 inches) Depth: 24.71 cm (9.73 inches) Weight: 2.02 kg (4.46 pounds) Interfaces MagSafe 2 power port Two Thunderbolt 2 ports (up to 20 Gbps) Two USB 3 ports (up to 5 Gbps) HDMI port Headphone port SDXC card slot Apple Thunderbolt to FireWire Adapter (sold separately) Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately) Warranty / Miscellaneous 1 Year Manufacturer Warranty 720p FaceTime HD camera