Display

• 27-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors
• Resolution: 2560 by 1440 pixels

Processor

• 2.7GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache
  

Memory

8GB of 1333MHz DDR3 memory
Configurable to 16GB

Storage

256GB SSD

Graphics

• 2.7 GHz
  AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory

Video Support and 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
• 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

• Two Thunderbolt ports
• 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
  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

• 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

• 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: 310W
• 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

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

Acoustic Performance

DECLARED NOISE EMISSIONS in accordance with ISO 9296

1. L_WAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B).
2. L_pAm is the mean A-weighted sound pressure level measured at the operator position (rounded to the nearest dB).
3. 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.

Included Software

MacOS High Sierra
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.