The magnificent all-in-one iMac features a gorgeous 21.5-inch widescreen display. Fourth-generation quad-core Intel Core processors and superfast NVIDIA graphics make it the most powerful iMac yet. And it comes standard with 8GB memory, a 1TB hard disk, and advanced, high-speed I/O, consisting of 2 Thunderbolt ports and four USB 3 ports. All in an impossibly thin enclosure that's just 0.2-inch (5 mm) at the edge. Optional Blend Drive, now up to 50 percent much faster High-speed I/O, consisting of 2 Thunderbolt ports, four USB 3 ports, and more Faster 802.11 a/c Wi-Fi FaceTime HD video camera Apple Wireless Keyboard Apple Magic Mouse OS X Mountain LionSpecifications Intel Core i5 2.9 GHz Quad-Core Processor with Turbo Boost up to 3.6 GHz 6MB L3 Cache 8GB 1600MHz DDR3 Memory (4GB x 2, Max - 16GB) 1TB (5400RPM) Disk drive 21.5-inch (diagonal) LED-backlit Show with IPS innovation (1920 by 1080 pixels) NVIDIA GeForce GT 750M graphics processor with 1GB of GDDR5 memory FaceTime HD Cam Integrated Stereo speakers & Dual microphones 802.11 a/c Wi-Fi Wireless LAN; IEEE 802.11 a/b/g/ n compatible Bluetooth 4.0 Wireless Innovation 10/100/1000BASE-T (Gigabit) Ethernet SDXC card slot Ports - 4 x USB 3.0, 2 x Thunderbolt (Mini DisplayPort output with support for DVI, VGA, and dual-link DVI -adapters offered independently), Earphone jack (optical digital audio out), RJ-45 LAN Power - 100 -240 V AC, 50-60Hz Approximate Device Dimensions (HxWxD) - 17.7 x 20.8 x 6.9 inches (45.0 x 52.8 x 17.5 cm) Approximate Device Weight - 12.5 pounds (5.68 kg).
2.9 GHz Quad-Core Intel Core i5 Processor (Turbo Boost up to 3.6 GHz) with 6MB L3 cache
1 TB (5400-rpm) Hard Drive, 8 GB (Two 4 GB) of 1600MHz DDR3 Memory
21.5-inch (Diagonal) LED-backlit Display with IPS Technology; 1920-by-1080 Resolution
NVIDIA GeForce GT 750M Graphics Processor with 1 GB of GDDR5 Memory
OS X Mavericks