iMac (21.5-inch and 27-inch, Mid 2011) - Technical Specifications

	21.5-inch iMac		27-inch iMac
Display High-resolution LED-backlit glossy widescreen display with support for millions of colors.	21.5-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors Resolution: 1920 by 1080 pixels		27-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors Resolution: 2560 by 1440 pixels
Processor and Memory Powered by a quad-core Intel Core i5 or i7 processor and DDR3 memory.	Processor 2.5GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache	Processor 2.7GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache Configurable to 2.8GHz quad-core Intel Core i7, only at the Apple Online Store.	Processor 2.7GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache	Processor 3.1GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache Configurable to 3.4GHz quad-core Intel Core i7, only at the Apple Online Store.
	Memory 4GB (two 2GB) of 1333MHz DDR3 memory Configurable to 16GB, only at the Apple Online Store.
Storage 500GB or 1TB hard drive.1	500GB (7200 rpm) hard drive	1TB (7200 rpm) hard drive Configurable to 2TB hard drive or 256GB solid-state second drive, only at the Apple Online Store.	1TB (7200 rpm) hard drive Configurable to 2TB hard drive or 256GB solid-state second drive, only at the Apple Online Store.	1TB (7200 rpm) hard drive Configurable to 2TB hard drive or 256GB solid-state second drive, only at the Apple Online Store.
Graphics Advanced AMD Radeon HD discrete graphics.	AMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memory	AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory	AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory	AMD Radeon HD 6970M graphics processor with 1GB of GDDR5 memory Configurable to AMD Radeon HD 6970M with 2GB GDDR5, only at the Apple Online Store.
Video Support and Camera Built-in FaceTime HD camera.	FaceTime HD camera Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display Support for extended desktop and video mirroring modes
Audio Built-in stereo speakers, built-in microphone, and headphone minijack.	Built-in stereo speakers Two internal 17-watt high-efficiency amplifiers Headphone/optical digital audio output (minijack) Audio line in/optical digital audio input (minijack) Built-in microphone Support for Apple iPhone headset with microphone
Connections and Expansion SuperDrive, SDXC card slot, audio in, audio out, USB 2.0, FireWire 800, Thunderbolt, Gigabit Ethernet.	One Thunderbolt port on 21.5-inch iMac Two Thunderbolt ports on 27-inch iMac Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately) One FireWire 800 port; 7 watts Four USB 2.0 ports SDXC card slot Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW) Audio in/out 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) IR receiver
Input Apple Wireless Keyboard and Magic Mouse or Magic Trackpad.	Apple Wireless Keyboard Full-size keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys, 4 arrow keys (inverted “T” arrangement), and embedded numeric keypad Magic Mouse Smooth, seamless Multi-Touch surface with support for simple gestures (scrolling and swiping). Click and double-click anywhere. Ambidextrous construction accommodates left- and right-handed users. Magic Trackpad Solid-state scrolling trackpad for precise cursor control; supports inertial scrolling, pinch and expand, swipe, three-finger swipe, four-finger swipe, tap, double-tap, rotate, screen zoom, scroll, click and drag, click drag and lock, secondary click A and B
Wireless Latest Wi-Fi and Bluetooth technologies.	Wi-Fi 802.11n Wi-Fi wireless networking;2 IEEE 802.11a/b/g compatible Bluetooth Bluetooth 2.1 + EDR (Enhanced Data Rate) wireless technology
Size and Weight An all-in-one design for a small footprint.	Height: 17.75 inches (45.1 cm) Width: 20.8 inches (52.8 cm) Depth: 7.42 inches (18.85 cm) Weight: 20.5 pounds (9.3 kg)3		Height: 20.4 inches (51.7 cm) Width: 25.6 inches (65.0 cm) Depth: 8.15 inches (20.7 cm) Weight: 30.5 pounds (13.8 kg)3
Electrical and Operating Requirements	Line voltage: 100-240V AC Frequency: 50Hz to 60Hz, single phase Maximum continuous power: 205W (21.5-inch models); 310W (27-inch models) Operating temperature: 50° to 95° F (10° to 35° C) Storage temperature: -4° to 116° F (-20° to 47° C) Relative humidity: 5% to 95% noncondensing Maximum altitude: 10,000 feet Typical acoustical performance Sound pressure level (operator position): 18 dBA at idle4
Limited Warranty and Service	Your iMac comes with 90 days of free telephone support and a one-year limited warranty. Purchase the AppleCare Protection Plan to extend your service and support to three years from your computer’s purchase date. Only the AppleCare Protection Plan provides you with direct telephone support from Apple technical experts and the assurance that repairs will be handled by Apple-authorized technicians using genuine Apple parts. For more information, visit Apple support or call 800-823-2775.
Environmental Status Report	iMac is designed with the following features to reduce its environmental impact: Arsenic-free display glass BFR-free PVC-free5 Mercury-free LED-backlit display Highly recyclable aluminum and glass enclosures Meets ENERGY STAR 5.2 requirements Rated EPEAT Gold6
Apple and the Global Environment	Learn more about Apple’s dedication to reducing the environmental impact of our products and process. The Apple Product Environmental Specification details the environmental attributes of our products.
Acoustic Performance DECLARED NOISE EMISSIONS in accordance with ISO 9296	Sound Power Level LWAd (B) 1 B = 10 dB Sound Pressure Level Operator Position LpAm (dB) 21.5-inch, 2.5 GHz 21.5-inch, 2.7 GHz 27-inch, 2.7 GHz 27-inch, 3.1 GHz 21.5-inch, 2.5 GHz 21.5-inch, 2.7 GHz 27-inch, 2.7 GHz 27-inch, 3.1 GHz Idle 3.0 3.0 3.0 3.1 18 17 16 17 Hard drive accessing 3.0 3.0 3.0 3.1 19 17 16 18 CD drive accessing 3.3 3.2 no value 3.4 22 20 no value 22 LWAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B). LpAm is the mean A-weighted sound pressure level measured at the operator position (rounded to the nearest dB). 1 B (bel) = 10 dB (decibel).
Recycling	Apple takes a holistic view of materials management and waste minimization. Learn more about how to recycle your Mac.
In the Box	iMac Apple Wireless Keyboard Apple Magic Mouse Power cord Install/restore DVDs Printed and electronic documentation
Included Software	OS X Lion Includes Mail, Address Book, iCal, the Mac App Store, iTunes, Safari, Time Machine, FaceTime, Photo Booth, Mission Control, Launchpad, AirDrop, Resume, Auto Save, Versions, Quick Look, Spotlight, QuickTime, and more. iLife Includes iPhoto, iMovie, and GarageBand.
Configurable Options Purchase from the Apple Online Store to upgrade processor, graphics, memory, and hard drive, or to swap Magic Mouse for Magic Trackpad.	Magic Trackpad 8GB memory upgrade (two 4GB)	Magic Trackpad 8GB memory upgrade (two 4GB) 16GB memory upgrade (four 4GB) 2TB hard drive 256GB solid-state second drive 2.8GHz quad-core Intel Core i7	Magic Trackpad 8GB memory upgrade (two 4GB) 16GB memory upgrade (four 4GB) 2TB hard drive 256GB solid-state second drive	Magic Trackpad 8GB memory upgrade (two 4GB) 16GB memory upgrade (four 4GB) 2TB hard drive 256GB solid-state second drive 3.4GHz quad-core Intel Core i7 AMD Radeon HD 6970M with 2GB of GDDR5 memory

Mac Software

• iWork
• Aperture
• Logic Express
• Final Cut Express

Displays and Graphics

• Apple Mini DisplayPort to DVI Adapter
• Apple Mini DisplayPort to VGA Adapter
• Apple Mini DisplayPort to Dual-Link DVI Adapter

AirPort and Wireless

• Time Capsule
• AirPort Express Base Station
• AirPort Extreme Base Station

Other Accessories

• Magic Trackpad
• Apple Battery Charger
• VESA Mount Adapter Kit
• AppleCare Protection Plan 

1. 1GB = 1 billion bytes and 1TB = 1 trillion bytes; actual formatted capacity less.
2. Wireless Internet access requires a wireless access point and Internet access; fees may apply.
3. Weight varies by configuration and manufacturing process.
4. Acoustics measured on standard 21.5- and 27-inch iMac systems. Acoustics may vary by configuration.
5. PVC-free AC power cord is available in the U.S., Canada, Mexico, Colombia, El Salvador, Guatemala, Panama, Peru, Puerto Rico, U.S. Virgin Islands, and Venezuela.
6. iMac achieved a Gold rating from EPEAT in the U.S. and Canada.

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