Apple iMac A1311 21.5″ All in One Desktop – Intel Core i5 | 4GB DDR3 RAM| 500GB HDD, macOS Yosemite

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 of 1333MHz DDR3 memory

Configurable to 16GB

Storage¹

• 2.7 GHz

  • 500GB (7200 rpm) hard drive

  • Configurable to 2TB hard drive or 256GB solid-state second drive

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

• 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