Product features: 

Free Upgrade To OS X Mavericks & Free Up-To-Date Program for Pages, Numbers, and Keynote. valid until 01/31/14 
2.9GHz Intel Core i5 Quad-Core (Haswell) 
8GB of 1600Hz DDR3 RAM 
1TB 5400rpm Hard Drive 
NVIDIA GeForce GT 750M Graphics (1GB) 
21.5" LED-Backlit IPS Display 
Full HD 1920 x 1080 Native Resolution 
802.11ac/a/b/g/n Wi-Fi, Bluetooth 4.0 
Thunderbolt, USB 3.0, SDXC Card Reader 
720p FaceTime HD Camera, Dual Mics 
Mac OS X 10.8 Mountain Lion (64-bit) 

Package Content 

Apple iMac 21.5" Desktop Computer (4th-Gen Intel Haswell CPU) 
Power Cord 
Apple Magic Mouse 
Apple Wireless Keyboard 
Mac OS X 10.8 Mountain Lion Preloaded (includes Mac App Store, Safari, Mail, Messages, Calendar, Contacts, Reminders, Notes, Time Machine, FaceTime, Photo Booth, Game Center, iTunes) 
iLife Preloaded (Includes iPhoto, iMovie, GarageBand) 
1-Year International Warranty