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

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