The iMac "Core i5" 1.4 21.5-Inch Aluminum (Mid-2014/Haswell) features a 22-nm "Haswell" 1.4 GHz Intel "Core i5" processor (4260U) with two independent processor "cores" on a single chip, a 3 MB shared level 3 cache, 8 GB of onboard 1600 MHz LPDDR3 SDRAM (which cannot be upgraded later), a 500 GB (5400 RPM) hard drive, and an "integrated" Intel HD Graphics 5000 graphics processor that shares system memory. It also has a built-in "FaceTime HD" webcam and stereo speakers. This model has a 21.5" 1920x1080 LED-backlit 16:9 widescreen IPS display with the "cover glass fully laminated to the LCD and anti-reflective coating." The rear of the case is aluminum and is thicker in the middle and tapers to a razor thin 5 mm at the edges. Connectivity includes four USB 3.0 ports, dual Thunderbolt ports, Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n compatible), and Bluetooth 4.0.