Performance
ProcessorIntel Core i5 Dual-Core
Base Clock Speed 1.6 GHz
Max Boost Speed  2.7 GHz
Memory Type 1867 MHz LPDDR3 SDRAM
Graphics CardIntel HD Graphics 6000
Display
Panel TypeIPS
Size21.5"
Aspect Ratio16:9
Native Resolution1920 x 1080
Viewing Angle178° Horizontal, 178° Vertical
External ResolutionUp to 3840 x 2160
Drives
Storage Drive5,400 rpmHDD; SATA
Optical DriveNone
Input/Output Connectors
Ports2 x Thunderbolt 2
4 x USB 3.0 Type-A
Display2 x Mini DisplayPort via Thunderbolt port
Audio2 x Integrated Speaker
2 x Integrated Microphone
1 x 1/8" (3.5 mm) Headphone/Microphone Combo Jack
Media Card SlotsSD/SDHC/SDXC
Communications
Network1 x 10/100/1000 Mbps Gigabit Ethernet (RJ-45)
Wi-Fi802.11ac; Dual-Band
BluetoothBluetooth 4.0
WebcamYes
General
Operating SystemMac OS X 10.11 El Capitan 
SecurityKensington Lock Slot
Power Requirements100-240 VAC, 50-60 Hz
Dimensions (WxHxD)20.8 x 17.7 x 6.9" / 52.8 x 45.0 x 17.5 cm