iMac (21.5-inch, Mid 2011) – Technical Specifications

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Description

Display

  • 21.5-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors
  • Resolution: 1920 by 1080 pixels

Processor

  • 2.5GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache
  • 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.

Memory

4GB (two 2GB) of 1333MHz DDR3 memory
Configurable to 16GB, only at the Apple Online Store.

Storage1

  • 2.5 GHz
    500GB (7200 rpm) hard drive
  • 2.7 GHz
    1TB (7200 rpm) hard drive
    Configurable to 2TB hard drive or 256GB solid-state second drive, only at the Apple Online Store.

Graphics

  • 2.5 GHz
    AMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memory
  • 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

  • One Thunderbolt port
  • 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: 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

Electrical and Operating Requirements

  • Line voltage: 100-240V AC
  • Frequency: 50Hz to 60Hz, single phase
  • Maximum continuous power: 205W
  • 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

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