Apple iMac 21.5-inch: 2.5GHz Quad i5 4GB/500GB (MC309X/A)

Specifications

Processor: 2.5GHz Quad-Core Intel Core i5
-6MB on-chip shared L3 cache
-21.5-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colours;1920 by 1080 pixels;
-Memory: 4GB (two 2GB SO-DIMMs) of 1333MHz DDR3 SDRAM
-Hard Drive: 500GB Serial ATA, 7200 rpm
-Optical drive Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
-Graphics: AMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memory
-Built-in iSight camera

One Thunderbolt port on 21.5-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

Includes:

• iMac
• Apple Wireless Keyboard
• Magic Mouse
• Power cord
• Install/restore DVDs (Lion 10.7 iLife)
• Cleaning cloth
• Printed and electronic documentation

-Options (not included):Applecare Protection plan

 + Free Download update to Mac OS Lion