Apple iMac 21.5 MC508LL/A 21 WideScreen All-in-One INTEL Core i3 3000 MHz 500Gig HDD 4096mb DVD-RW Snow Leopard (10.6) Desktop Computer Form Factor: All in One Optical Drive Type: DVD-RW Colors: White Processor: INTEL Core i3 Storage: 500Gig Ethernet: 10/100/1000 Software Included: Comes with Snow Leopard (10.6) N/A, N/A Special Features: Connectivity includes four USB 2.0 ports, a Firewire 800 port, built-in AirPort Extreme, and Gigabit Ethernet, as well as an audio capable Mini DisplayPort, which supports an external display up to 30 (2560x1600).