Brand: Apple
Product Code: 175395
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iMac - Retina. Now in colossal and ginormous.

The idea behind iMac has never wavered: to craft the ultimate desktop experience. The best display, paired with high-performance processors, graphics and storage - all within an incredibly thin, seamless enclosure. And that commitment continues with the all-new 21.5-inch iMac with Retina 4K display. Like the revolutionary 27-inch 5K model, it delivers such spectacular image quality that everything else around you seems to disappear. Adding up to the most immersive iMac experience yet - and another big, beautiful step forward.


Retina Display - More than just a display, it's a vision.

Accuracy. Brightness. Clarity. Regardless of how you measure the quality of a display, Retina is in a class by itself. The pixel density is so high that you won't detect a single one while using iMac. Text is so sharp, you'll feel like you're reading email and documents on a printed page. And with a new, wider colour gamut, the Retina display is able to deliver even more available colours - 25 per cent more. So every photo and video you see appears even more true to life.


Pixel by pixel, a masterpiece.

iMac has always harnessed the latest technology - and taken it further - to make the ultimate all-in-one better and better. And the Retina display is a testament to that. We pushed the limits of pixel density so you can see everything with pinpoint accuracy. We questioned every method of integrated design to achieve a remarkable level of fit and finish. The result? A beautiful, impossibly thin display of colour and contrast - and zero compromise.


Retina Display - Precision. Repeated 14.7 million times.

Every millimetre of the Retina display was designed, engineered and built to the most exacting standards. Something that 14.7 million pixels makes exceedingly clear. As does a 1.4-millimetre-thin display panel designed around the human eye - so every interaction feels as natural as can be. It's that attention to detail that inspired the all-new 21.5-inch iMac with Retina 4K display. And just like the Retina 5K display, it delivers a larger colour palette with more accuracy.


Wider Colour Palette - True-to-life colour. Alive on screen.

Many of the brilliant, unique colours you see in the real world never make it to your screen. A wider colour gamut makes more of these real-life colours available on the Retina display. A striking 25 per cent more. So whether it's a sunset at the beach or your favourite football team's jerseys, you'll see them just as you saw them - on a display that's more vibrant than ever.


25 per cent more available colours. 100 per cent jaw-dropping.

To see colour as it appears in real life, you've got to capture the ones you're missing. And a wider colour gamut does just that. Retina moves well beyond the typical sRGB display with an all-new P3 colour gamut. This is achieved by shifting the Retina display away from standard white LEDs to advanced red-green phosphor LEDs. Now all three colours - red, green and blue - are more equally represented, and show off real-world colour with more balance and precision.


The colour you shoot is the colour you see.

Many cameras, including DSLRs and professional video cameras, can capture a far wider range of colour than the typical sRGB colour gamut. And with a new P3-based wider gamut, the iMac Retina display is able to bring more of those real-world colours to the screen. So go back and reprocess those RAW images you've saved - and reveal colour you haven't seen in them before.


Innovation. On top of innovation.

Engineering the Retina display involved the precise calibration of 23 layers that make up a display panel that's just 1.4 millimetres thin. And out of that process we made advancements to improve not only the resolution but also the quality of the entire iMac display. So in addition to the incredible detail, you'll see blacker blacks, more vivid colours and images that practically jump off the screen.


Orchestrating the performance of 14.7 million pixels.

A more advanced timing controller. The timing controller, or TCON, is the brains of the display - it tells each pixel what to do and when to do it. But even the most powerful timing controllers available couldn't manage the number of pixels on the iMac Retina 4K and 5K displays. So we created a new one - a single, supercharged chip that's able to command up to 14.7 million pixels.


Clearing the way for signal quality.

Organic passivation. With so many pixels on Retina display screens, clear communication between them requires organic passivation, or 'overpass' technology. It separates the pixels from the signals that tell them when and how to light up - preventing any cross-talk, or interference, that could result from putting so many pixels so close together. This maintains the quality of the image on screen while those signals are being transmitted.


Delivering true-to-life imagery from every angle.

Photo alignment. To improve on-axis contrast, we implemented an advanced process called photo alignment. This involves shining UV light to create a uniform terrain across the film coating on the TFT and colour filter, so when the liquid crystal molecules are exposed, they lie exactly where they should. Better-aligned molecules mean you see better contrast when you're directly in front of the display.

A display like this is the kind that people gather around. And at this size, even when you're looking at the centre of the screen, you see the corners at an angle, or off axis. To make sure the contrast is perfect from every angle, we use a compensation film that controls how the light exits the display. The result is a display with truer colours, no matter where you view it from.


Enclosure - 5 millimetres thin. Just the right size to do something big.

The first iMac was a revolution: an all-in-one computer that put everything - display, processor, graphics, storage, memory and more - inside one simple, stylish enclosure. Today's iMac includes the most advanced, most brilliant desktop display we've ever built, and it's filled with the latest high-performance technologies. Yet it's still just 5 millimetres thin at its edge.


Seamless design.

One of the biggest challenges our engineers faced with the iMac enclosure was how to join the front to the back. The enclosure is so thin, it's not possible to weld the pieces using traditional methods. So we used a process called friction-stir welding. It combines intense friction-generated heat and pressure to intermix the molecules of the two aluminium surfaces - creating a seamless, precise and remarkably strong join.


Fusion Drive - Storage that's lightning fast. And whip smart.

Storage is about space. But it's also about speed and performance. A Fusion Drive gives you the best of both worlds. This innovative storage technology intelligently combines speedy flash storage with a high-capacity hard drive. Your frequently used apps, documents and photos stay on the faster flash storage, while infrequently used items move to the hard drive. And as the system learns how you work, you'll experience faster application launching and quicker file access. Fusion Drive can be configured with up to 3TB of storage.1 But for those who want the ultimate performance, there's an all-flash option that's now up to 2.5 times faster than the previous version.


Built for speed. And everything else.

You know iMac by its incredibly thin enclosure. But that just sets the stage for massive performance. With a new Intel Core processor, the latest AMD graphics, an advanced Fusion Drive and Thunderbolt 2, iMac delivers lightning-fast speed. And striking power.


Processors - Think fast. We did.

A fifth-generation Intel Core processor in the 21.5-inch iMac. An all-new sixth-generation Intel Core processor in the 27-inch iMac - at up to 4.0GHz - and 1867MHz memory. You couldn't ask for more speed. Yet Turbo Boost 2.0 gives you even more when you're using processor-intensive applications like Logic Pro or Final Cut Pro. It all takes place behind the scenes, but you'll see the difference in performance.


Graphics - Images that render you speechless.

The latest AMD high-performance graphics give the 27-inch iMac with Retina 5K display up to 3.7 teraflops of graphics compute power. The 21.5-inch iMac with Retina 4K display also lights up with enhanced Intel Iris Pro Graphics. Both deliver visual effects and 3D graphics that exhibit raw power in its most polished form.


Fusion Drive - A fusion of storage, speed and intelligence.

Fusion Drive combines the spaciousness of a traditional hard drive with the high performance of flash storage. Choose a swift 1TB Fusion Drive or a lightning-fast version with up to 3TB of storage. Whatever the choice, everything from booting up to launching apps to importing photos is faster and more efficient. That's because your frequently used items are kept at the ready on speedy flash storage, while infrequently accessed items go to the hard drive. It's the best of both worlds.


Ultrafast flash.

For maximum performance, you can configure iMac with up to 1TB of PCIe-based flash storage that's now up to 2.5 times faster than the previous version. Delivering up to 1800MB/s of sequential read performance, pure flash storage is the fastest way to blaze through the most demanding tasks.


Thunderbolt 2 - Blazing-fast data transfer.

Each of the two ultrafast, ultraflexible Thunderbolt 2 ports significantly expand the capabilities of iMac. For example, you can connect high-performance peripherals and move data up to 40 times faster than with USB 2, and up to 25 times faster than with FireWire 800. You also have more than enough bandwidth - up to 20Gb/s - to daisy-chain multiple high-speed devices and still maintain maximum throughput.


Wireless - Up to three times faster Wi-Fi.

With three-stream 802.11ac technology, iMac takes desktop Wi-Fi to unprecedented speeds. Simply connect to an 802.11ac base station - such as AirPort Extreme or AirPort Time Capsule - and reach data rates of up to 1.3 Gbps.3 That's triple the previous 802.11n standard. You also get double the channel bandwidth, with 80MHz-wide channels providing more room for more data to flow faster than ever.


Connectivity - Fast connections for high performance.

iMac is astonishingly thin. But it's jam-packed with advanced technology. Two Thunderbolt 2 ports come standard on all iMac models and deliver blazing-fast data transfer for external drives and cameras. Four USB 3 ports give you plenty of options for connecting peripherals, including your printer, video devices and more. And with ultrafast three-stream Wi-Fi and Bluetooth 4.0 wireless technology, you're instantly connected to all your favourite content.


OS X El Capitan - Our most advanced desktop operating system.

OS X is what makes a Mac a Mac. Not only is it designed to be intuitive and easy to use, but it's also engineered to take full advantage of the Retina display, so you'll see everything on your desktop with stunning clarity. It features an incredible collection of apps you'll use - and love - every day. And it's designed to enable your Mac and iOS devices to work together in amazing ways.


OS X. It's what makes a Mac a Mac.

OS X is the operating system that powers every Mac. Built on a rock-solid UNIX foundation, it's engineered to take full advantage of what the hardware is capable of. It's 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.


Easy to learn. Easy to use.

On a Mac, it's easy to find, share and do just about everything. You can control your Mac with simple, intuitive gestures. The Dock lets you launch your favourite apps with a click. Launchpad gives you quick access to your full library of apps. The Finder lets you browse and organise your files on your Mac and in iCloud with ease. Spotlight search makes locating documents, launching apps and looking up information effortless.1 You can even have your apps and the operating system software update automatically. In fact, a Mac does so many things automatically, sometimes you don't have to do anything at all.


Every detail considered. And reconsidered.

Over the years, OS X has changed in many ways. But the principles that define it haven't: power, simplicity beauty. Across-the-board refinements have made OS X El Capitan even more powerful and easier to use, while maintaining the elements essential to Mac. As with every Apple product, each detail is obsessed over: from the distinctive icons in the Dock, to the streamlined toolbars, to the fluidity of navigating everything from photos to web pages. Because when it comes to a great experience, the difference is in the details.


Software and hardware made for each other.

OS X is built to bring out the best in your Mac, so you get a fully integrated system in which everything works together seamlessly. It works with the processor and graphics controller in your Mac to deliver the best possible performance. It works with the highly responsive trackpad in Mac notebooks so Multi-Touch gestures feel natural to use. OS X even keeps your Mac up to date while it sleeps.2 Advanced power-saving technologies help extend battery life. And in OS X El Capitan, new system fonts are designed to look crisp and vivid on high-resolution Retina displays.


27-inch (diagonal) Retina 5K display with IPS technology; 5120-by-2880 resolution with support for millions of colours

3.2GHz quad-core Intel Core i5 (Turbo Boost up to 3.6GHz)

8GB (two 4GB) of 1867MHz DDR3 memory; four user-accessible SO-DIMM slots

1TB (7200-rpm) hard drive

AMD Radeon R9 M380 graphics processor with 2GB of GDDR5 memory

Video Support and Camera
FaceTime HD camera
Simultaneously supports full native resolution on the built-in display, and up to two 4096-by-2160 external displays or one 5120-by-2880 dual-cable external display
Support for extended desktop and video mirroring modes

Stereo speakers
Dual microphones
3.5-mm headphone jack
- Headphone/optical digital audio output (minijack)
- Support for Apple iPhone headset with microphone

Connections and Expansion
3.5-mm headphone jack
SDXC card slot
Four USB 3 ports (compatible with USB 2)
Two Thunderbolt 2 ports
- Mini DisplayPort output
- Support for HDMI, DVI, VGA and dual-link DVI (adapters sold separately)
10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Kensington lock slot

Apple Magic Keyboard
The redesigned Apple Magic Keyboard comes standard with your iMac. It's wireless and rechargeable (so you won't be replacing batteries), with an ultracompact edge-to-edge design that wastes no surface space. It has an improved scissor mechanism, optimised key travel, and a lower profile that increase control and comfort. And it pairs immediately with your iMac, straight out of the box.
Apple Magic Mouse 2
The new design of Apple Magic Mouse 2 lets it glide more smoothly across your desk. And since it supports Multi-Touch, you can use simple gestures on its surface to do things such as swipe between web pages and scroll through documents. So if you prefer to use a wireless mouse but want some of the benefits of Multi-Touch, Apple Magic Mouse 2 is a great choice.
Apple Magic Trackpad 2
If you prefer using a trackpad, Apple Magic Trackpad 2 gives you the full range of Multi-Touch gestures and introduces Force Touch to the desktop. Sensors underneath the trackpad surface detect subtle differences in the amount of pressure you apply, bringing more functionality to your fingertips and enabling a deeper connection to your content. This new design, along with a lower profile, makes it even more comfortable to use.

Wi-Fi 802.11ac Wi-Fi wireless networking
IEEE 802.11a/b/g/n compatible

Bluetooth 4.0 wireless technology

51.6 cm (20.3 inches)
65.0 cm (25.6 inches)
Stand depth
20.3 cm (8 inches)
9.54 kg (21 pounds)

Electrical and Operating Requirements
Line voltage
100-240V AC
50Hz to 60Hz, single phase
Operating temperature
10 to 35 C (50 to 95 F)
Relative humidity
5% to 95% noncondensing
Operating altitude
Tested up to 3,000 metres (10,000 feet)

In the Box
iMac with Retina 5K display
Apple Magic Keyboard
Apple Magic Mouse 2
Power cord
Lightning to USB Cable