Processor: Intel Core 2 Duo 3.06GHz Operating System: Mac OS X Snow Leopard 10.6 Memory: 4GB (2x2GB DDR3 1066MHz) Graphics: NVIDIA GeForce 9400M 256MB shared Display: 21.5 inch LED backlit glossy widescreen (1920x1080) HDD: 500GB Serial ATA 7200rpm Optical storage: SuperDrive (DVD+/-R DL, DVD+/-RW DL, CD-RW) Dimensions: H:45.1cm W:52.8cm D:18.85cm Expansion slots: One Gigabit ethernet port Bluetooth 2.1+EDR AirPort Extreme 802.11 a/b/g/n I/O ports: One FireWire 800 Four USB 2.0 Ports SD card reader iSight Camera Other: Apple wireless international keyboard included Apple Magic Mouse included