Processor / Memory

20-inch iMac, one of the following:

2.0GHz or 2.4GHz Intel Core 2 Duo processor

24-inch iMac, one of the following:

2.8GHz Intel Core 2 Extreme processor

OWC Memory Upgrades: Add up to 6GB of memory. OWC certified for up to 6GB of memory.

Internal Drives

20-inch model with 2.0GHz processor	Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
250GB Serial ATA 7200-rpm hard drive Optional 320GB or 500GB Serial ATA 7200-rpm hard drive	Writes DVD+R DL and DVD-R DL discs at up to 4x speed Writes DVD-R and DVD+R discs at up to 8x speed Writes DVD-RW discs at up to 6x speed and DVD+RW discs at up to 8x speed Reads DVDs at up to 8x speed Writes CD-R discs at up to 24x speed Writes CD-RW discs at up to 16x speed Reads CDs at up to 24x speed

20-inch model with 2.4GHz processor	Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
320GB Serial ATA 7200-rpm hard drive Optional 500GB or 750GB Serial ATA 7200-rpm hard drive	Writes DVD+R DL and DVD-R DL discs at up to 4x speed Writes DVD-R and DVD+R discs at up to 8x speed Writes DVD-RW discs at up to 6x speed and DVD+RW discs at up to 8x speed Reads DVDs at up to 8x speed Writes CD-R discs at up to 24x speed Writes CD-RW discs at up to 16x speed Reads CDs at up to 24x speed

24-inch model with 2.4GHz processor	Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
320GB Serial ATA 7200-rpm hard drive Optional 500GB, 750GB, or 1TB Serial ATA 7200-rpm hard drive	Writes DVD+R DL and DVD-R DL discs at up to 4x speed Writes DVD-R and DVD+R discs at up to 8x speed Writes DVD-RW discs at up to 6x speed and DVD+RW discs at up to 8x speed Reads DVDs at up to 8x speed Writes CD-R discs at up to 24x speed Writes CD-RW discs at up to 16x speed Reads CDs at up to 24x speed

Hard drive upgrade: Add up to 1.0TB of storage	Optical drive: Update/replace the internal Apple SuperDrive®
OWC SSD upgrade: Upgrade to OWC SSD performance

Ports

One FireWire 400 port and one FireWire 800 port; 7 watts each

Total of five USB 2.0 ports: three ports on computer, two ports on keyboard

External FireWire, USB, and eSATA, storage solutions | Audio, input, network, displays and power accessories | Kensington Lock

Power

Line voltage: 100-240V AC
Frequency: 50Hz to 60Hz, single phase
Maximum continuous power: 200W (20-inch model); 280W (24-inch models)

Operating temperature: 50° to 95° F
(10° to 35° C)
Storage temperature: -40° to 116° F
(-40° to 47° C)

Relative humidity: 5% to 95% noncondensing
Maximum altitude: 10,000 feet

Network

Built-in AirPort Extreme Wi-Fi wireless networking (based on IEEE 802.11n draft specification); IEEE 802.11a/b/g compatible

Bluetooth 2.0 + EDR (Enhanced Data Rate) wireless technology

10/100/1000BASE-T Ethernet (RJ-45) interface with support for jumbo frames

Works with 56K V.92 Apple USB Modem (sold separately)

Airport / Wireless Routers | Bluetooth Accessories | Ethernet

Sound

Built-in stereo speakers
Internal 24-watt digital amplifier
Headphone/optical digital audio output (minijack)

Audio line in/optical digital audio input (minijack)
Built-in microphone

Speakers and Headphones

Display / Monitor Capability

20-inch model 1680 by 1050 native resolution

Glossy widescreen TFT active-matrix liquid crystal display

16:9 aspect ratio
Millions of colors at all resolutions
Typical viewing ange: 160° horizontal & vertical
Typical brightness: 290 nits
Typical contrast ratio: 800:1

24-inch model 1920 by 1200 native resolution

Glossy widescreen TFT active-matrix liquid crystal display

16:9 aspect ratio
Millions of colors at all resolutions
Typical viewing ange: 178° horizontal & vertical
Typical brightness: 380 nits
Typical contrast ratio: 750:1

Graphics / Video

20-inch model with 2.4GHz processor

ATI Radeon HD 2400 XT graphics processor with 128MB of GDDR3 memory

20-inch model with 2.66GHz processor

ATI Radeon HD 2600 PRO graphics processor with 256MB of GDDR3 memory

27-inch model with 2.8GHz or 3.06GHz processor, one of the following

ATI Radeon HD 2600 PRO graphics processor with 256MB of GDDR3 memory

All Models

Built-in iSight camera
Mini-DVI output port with support for DVI, VGA, S-video, and composite video connections via adapter
Support for extended desktop and video mirroring modes
Support for external display in extended desktop mode: Digital resolutions up to 1920 by 1200 pixels, Analog resolutions up to 2048 by 1536 pixels
Support for external display in video mirroring mode

Dimensions / Weight

21.5-inch models

Height:	18.5"	(46.9cm)
Width:	19.1"	(48.5cm)
Depth:	7.42"	(18.9cm)
Weight:	20 lb	(9.3kg)

27-inch models

Height:	20.5"	(52.0cm)
Width:	22.4"	(56.9cm)
Depth:	8.1"	(20.7cm)
Weight:	25.4 lb	(11.5kg)

*While researched thoroughly via independent resources, OWC does not make any claim to accuracy or completeness of these specifications.

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