Enclosure Precision aluminum unibody Processor 1.86GHz Intel Core 2 Duo L2 Cache 6MB shared System bus 1066MHz Memory 2GB of 1066MHz DDR3 SDRAM onboard (4GB Maximum) Storage 2 128GB of flash storage Slot loading optical drive Optional external USB MacBook Air SuperDrive (sold separately) Graphics NVIDIA GeForce 320M graphics processor with 256MB of DDR3 SDRAM shared with main memory3 Video FaceTime camera; Mini DisplayPort output port with support for DVI, VGA, dual-link DVI, and HDMI (requires adapters, sold separately) Display 13.3-inch (diagonal) high-resolution LED-backlit glossy widescreen display, 1440-by-900 resolution Port Two USB 2.0 ports (up to 480 Mbps); SD card slot Audio Stereo speakers, omnidirectional microphone, headphone minijack Networking Apple USB Ethernet Adapter (sold separately) Wireless AirPort Extreme Wi-Fi (based on IEEE 802.11n specification)4; Bluetooth 2.1 + EDR (Enhanced Data Rate) wireless technology Hardware Acessories 45W MagSafe Power Adapter, AC wall plug, power cord