Processor: This model is powered by a 22 nm, 64-bit Intel Core i3 (3225) "Ivy Bridge" processor with dual cores (two independent processor cores on a single silicon chip, each with two threads)
Memory: 1600 MHz DDR3 SDRAM
Display: This model has a 21.5" LED-backlit 16:9 widescreen TFT active matrix display with IPS technology and a native resolution of 1920x1080. Apple also reports that the "cover glass is fully laminated to the LCD and an anti-reflective coating is applied
Graphics: Intel HD Graphics 4000
Connectivity: AirPort Extreme (802.11a/b/g/n) and Bluetooth 4.0 standard.
I/O Ports & Slots: two Thunderbolt ports. Four USB 3.0 ports, Gigabit Ethernet, Single "headphone/optical digital audio output (minijack)