Chelsea Online

Processor Intel Core i5 Quad Core 3.2GHz Turbo Boost up to 3.6GHz Memory 8GB (two 4GB) of 1867MHz DDR3 memory four SO-DIMM slots, user accessible Hard Drive 1TB (7200-rpm) hard drive Optical Drive None Software Operating System: OS X El Capitan Engineered to take full advantage of your Mac hardware, OS X El Capitan is designed to be as easy to use as it is beautiful to look at. It comes with an amazing collection of apps you’ll use — and love — every day. And it enables your Mac and iOS devices to work wonderfully together. Display 27-inch (diagonal) Retina 5K display IPS technology Resolution 5120 x 2880 Support for millions of colours Graphics AMD Radeon R9 M390 2GB Audio Stereo speakers Dual microphones 3.5mm headphone jack Headphone/optical digital audio output (mini-jack) Support for Apple iPhone headset with microphone Input Devices Apple Magic Keyboard Apple Magic Mouse 2 Apple Magic Trackpad 2 Networking 802.11ac Wi‑Fi wireless networking IEEE 802.11a/b/g/n compatible Bluetooth 4.0 wireless technology 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) Power Supply Line voltage: 100–240V AC Frequency: 50Hz to 60Hz, single phase Operating temperature: 10° to 35° C (50° to 95° F) Relative humidity: 5% to 95% non-condensing Operating altitude: tested up to 3,000 metres Dimensions Height: 51.6 cm Width: 65.0 cm Stand depth: 20.3 cm Weight: 9.54 kg Interfaces RJ-45 connector 3.5mm headphone jack SDXC card slot 4 x USB 3.0 ports 2 x Thunderbolt 2 ports Mini DisplayPort output Support for HDMI, DVI, VGA and dual-link DVI (adapters sold separately) FaceTime HD camera