27" 3.06GHz MB952LL/A Key Features @ 27-inch LED-backlit glossy widescreen display with IPS technology, a 2560 x 1440-pixel resolution, 16:9 aspect ratio, 375 cd/m2 brightness rating, and 178-degree viewing angle (horizontal and vertical) @ 3.06 GHz Intel Core i7 processor with 3 MB shared L2 cache for excellent multitasking @ 2 TB Serial ATA hard drive (7200 RPM) @ 16 GB DDR3 RAM (4 X 4GB) @ ATI Radeon HD 4850 graphics processor (with 512 MB of GDDR3 memory) for better gaming performance and better responsiveness for video and photo editing. @ 8x slot-loading SuperDrive with double-layer DVD support (DVD±R DL/DVD±RW/ @ Built-in iSight camera for video chatting @ Wi-Fi wireless networking (based on 802.11n specification; 802.11a/b/g compatible) @ Gigabit Ethernet wired networking (10/100/1000BASE-T) @ Bluetooth 2.1 + EDR (Enhanced Data Rate) for connecting with peripherals such as keyboards, mice and cell phones @ Side-loading SD card slot @ Four USB 2.0 ports, one FireWire 800 port @ Mini DisplayPort video output with optional adapters for DVI and VGA output; supports input from external DisplayPort sources (requires cables and adapters, sold separately) @ Built-in stereo speakers with two internal 17-watt high-efficiency amplifiers along with built-in microphone, optical digital audio output/headphone out, optical digital audio input/audio line in @ Wall mountable with optional VESA Mount Adapter Kit @ Dimensions: 25.6 x 8.15 x 20.4 inches (WxDxH) @ Weight: 30.5 pounds @ Included Wireless Keyboard and Magic Mouse What's in the Box , Wireless Keyboard, Magic Mouse, cleaning cloth, power cord, install/restore DVDs, printed and electronic documentation Warranty And Service The comes with 90 days of free telephone support and a one-year limited warranty. 3 year extended Warranty will be delivered Electronically to register with . Only the Care Protection Plan provides you with direct telephone support from technical experts and the assurance that repairs will be handled by -authorized technicians using genuine parts.