Processor: Intel Core 2 Duo Cache: 3MB shared L2 cache Memory: 4GB (two 2GB) of 1066MHz DDR3 SDRAM Graphics: NVIDIA GeForce 320M graphics processor with 256MB of DDR3 SDRAM shared with main memory Hard disk drive: 250GB Serial ATA, 5400 rpm Optical drive: 8x double-layer SuperDrive (DVD±R DL/DVD±RW/CD-RW) Wireless: AirPort Extreme (802.11n)4 Bluetooth 2.1 + EDR (Enhanced Data Rate) Expansion: Two USB 2.0 ports, one FireWire 800 port, one SD card slot Video and Audio: iSight camera; Mini DisplayPort output port with support for DVI, VGA, dual-link DVI, and HDMI (requires adapters, sold separately) Stereo speakers with subwoofers, omnidirectional microphone, combined headphone/line in (supports digital output) Size and weight: Height: .95 inches (2.41 cm) Width: 12.78 inches (32.5 cm) Depth: 8.94 inches (22.7 cm) Weight (standard configuration): 4.5 pounds (2.04 kg)3