Apple iMac 21.5" MK142LL/A i5-5250U 1.6 GHz 8 GB 1 TB desktop PC

All-in-One Desktop for Home and Office

The Apple iMac 21.5 MK142LL/A integrates the computer and display into a single aluminium enclosure measuring five millimetres at the edges. It ships with macOS 10.11 pre-installed and includes a Macally keyboard and mouse. A dual-core Intel i5-5250U processor running at 1.6 GHz with a 2.7 GHz turbo frequency and 3 MB cache handles everyday productivity tasks. Eight gigabytes of DDR3 memory and a one-terabyte 5400 RPM SATA drive provide the baseline capacity.

Verify Software and Peripheral Needs

Confirm that the pre-installed macOS 10.11 supports the applications you rely on, as newer software may require a later operating system. The system uses integrated Intel Iris Pro Graphics 6000 driven by a 1920 by 1080 IPS panel with a 178-degree viewing angle and 16:9 aspect ratio. Connectivity includes 802.11ac wireless, Bluetooth 4.0, gigabit Ethernet and an SD card reader. No internal upgrade paths are described for memory or storage.

Aluminium Unibody with Fixed Peripherals

The all-in-one chassis eliminates a separate tower and reduces cable clutter to a single power cord. A FaceTime HD webcam and microphone sit above the LED-backlit display for video calls, while stereo speakers handle audio output. The included Macally keyboard and mouse connect via USB, occupying two ports on the rear. Because the components are sealed behind the display, internal dust cleaning or drive replacement is not a routine user task.