![]() ![]() Hardware using Thunderbolt is still in short supply – high-performance storage and multimedia interfaces are expected later this year – but the iMac 27's twin ports does mean that, for the first time, you can hook up two external displays and spread your OS X desktop across three screens (if you have the physical desk space and the wallet to support it, naturally). Using the same connector as Mini DisplayPort – meaning you can plug in either a Thunderbolt peripheral or an external display – it supports daisy-chaining of up to six devices per port, with enough bandwidth for simultaneous display of six uncompressed HD videos. #Graphics card for imac 2011 pro#Thunderbolt – née Intel Light Peak in partnership with Apple – made its debut on the MacBook Pro earlier this year, a high-speed connectivity standard hoping to replace not only USB 2.0/3.0, FireWire and eSATA, but display connections too. #Graphics card for imac 2011 Bluetooth#There's also WiFi a/b/g/n and Bluetooth 2.1+EDR, an infra-red port for use with Apple's media remote (sold separately), and an Apple Wireless Keyboard as standard this time around, iMac buyers can pick between the Magic Mouse or the Magic Trackpad. Ports are broadly the same as before, so you get audio in/out, four USB 2.0, a FireWire 800, two 10Gbps Thunderbolt ports on the 27-inch iMac (just the one on the 21.5-inch version) and gigabit ethernet. New to this generation is the FaceTime HD camera, more on which in a moment. The whole thing is lifted by a neat stand – complete with a cable-guide hole – with 17W speakers along the bottom edge and an integrated microphone. Ports are neatly lined on the lower left hand corner of the rear panel, with only a slot-loading 8x SuperDrive dual-layer DVD burner spoiling the sides. The basic premise is the same: an amazingly clear, bright and vivid IPS LCD display – either 27-inches running at 2560 x 1440 resolution, like our review unit, or 21.5-inches running at 1920 x 1080, slotted behind a sheet of glossy glass and then into a minimalist aluminum chassis. ![]()
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