1.83 GHz Intel Core 2 Duo processor with 667 MHz system bus
1 GB DDR2 SDRAM (expandable to 2 GB), 80 GB SATA hard drive, and slot-loading slot-loading Combo drive (DVD-ROM/CD-RW)
One FireWire 400 port (8 watts); four USB 2.0 ports (up to 480 Mbps); DVI output; VGA output (using included adapter); S-video and composite video output
Built-in 10/100/1000BASE-T (Gigabit), built-in AirPort Extreme Wi-Fi (802.11g)3; built-in Bluetooth 2.0+EDR (Enhanced Data Rate) module
Mac OS X v10.5 Leopard, iLife '08, and Front Row software included

2.0 GHz Intel Core 2 Duo processor with 667 MHz system bus
1 GB DDR2 SDRAM (expandable to 2 GB), 120 GB SATA hard drive, and slot-loading SuperDrive with double-layer support (DVD±R DL/DVD±RW/CD-RW)
One FireWire 400 port (8 watts); four USB 2.0 ports (up to 480 Mbps); DVI output; VGA output (using included adapter); S-video and composite video output
Built-in 10/100/1000BASE-T (Gigabit), built-in AirPort Extreme Wi-Fi (802.11g); built-in Bluetooth 2.0+EDR (Enhanced Data Rate) module
Mac OS X v10.5 Leopard, iLife '08, and Front Row software included

200-pin SODIMM
DDR2-667
DDR2 PC2-5300 Unbuffered, NON-ECC, DDR2-667, 1.8V, 128Meg x 64
The only brand of memory upgrade available directly from a DRAM manufacturer, tested to meet the most stringent industry specifications
Install it yourself in about 15 minutes. The same top-quality memory that the worlds largest computer manufacturers install in the systems they sell

1.66 GHz Intel Core Duo processor with 167 MHz system bus
512 MB DDR2 SDRAM (expandable to 2 GB), 60 GB hard drive, and slot-loading slot-loading Combo drive (DVD-ROM/CD-RW)
One FireWire 400 port (8 watts); four USB 2.0 ports (up to 480 Mbps); DVI output; VGA output (using included adapter); S-video and composite video output
Built-in 10/100/1000BASE-T (Gigabit), built-in 54 Mbps AirPort Extreme Wi-Fi (802.11g); and built-in Bluetooth 2.0+EDR (Enhanced Data Rate) module
Mac OS X v10.4 Tiger, iLife '06, and Front Row software included