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Silver 21.5-inch all-in-one iMac with glossy display and included keyboard and mouse

Apple

Apple iMac 21.5" 2.8GHz Intel Core i5 8GB DDR4 1TB desktop PC

SKU CH-4JRW-CE7KA

A 21.5-inch all-in-one desktop with a 2.8 GHz quad-core Intel Core i5, 8 GB DDR4 memory, 1 TB hard drive, Intel Iris Pro Graphics 6200 and macOS 10.12 Sierra

  • TypeAll-in-One PC
  • Form FactorAll-in-One
  • ColorSilver
  • AudioSound card - Integrated
  • EthernetGigabit Ethernet
  • Wireless Card802.11n Wi-Fi wireless networking;2 IEEE 802.11a/b/g compati
  • Quad-core Intel Core i5 at 2.8 GHz delivers responsive everyday performance
  • 5-inch 1920x1080 IPS display gives sharp, wide-angle visuals
  • 8 GB DDR4 memory handles multitasking smoothly with room to expand to 16 GB
  • Two Thunderbolt ports plus four USB 3 ports connect fast peripherals and external displays
  • Intel Iris Pro Graphics 6200 drives creative apps and media playback

All-in-one desktop with 21.5-inch display

This Apple iMac integrates a 21.5-inch glossy LED-backlit IPS display at 1920x1080 resolution with a quad-core Intel Core i5 processor running at 2.80GHz. It ships with 8GB of DDR4 memory, a 1TB hard drive, and macOS 10.12 Sierra. Connectivity includes four USB 3 ports, two Thunderbolt ports, Gigabit Ethernet, and 802.11n Wi-Fi.

Suits home office and general use.

The integrated Intel Iris Pro Graphics 6200 handles everyday productivity, media playback, and light creative tasks. Buyers who need discrete graphics performance for 3D rendering, modern gaming, or GPU-accelerated compute should consider a different system. The all-in-one form factor also limits internal hardware changes beyond memory.

Memory ceiling of 16GB DDR4

The system supports a maximum of 16GB of DDR4 memory, double the factory 8GB. This cap is the main constraint for users running virtual machines, large datasets, or heavy multitasking workloads. Storage remains on the included 1TB hard drive with no solid-state option mentioned in the specifications.

Highlights

  • Quad-core Intel Core i5 at 2.8 GHz delivers responsive everyday performance
  • 5-inch 1920x1080 IPS display gives sharp, wide-angle visuals
  • 8 GB DDR4 memory handles multitasking smoothly with room to expand to 16 GB
  • Two Thunderbolt ports plus four USB 3 ports connect fast peripherals and external displays
  • Intel Iris Pro Graphics 6200 drives creative apps and media playback

Specifications

BrandApple
SeriesiMac
Part NumberMK442LL/A
TypeAll-in-One PC
Form FactorAll-in-One
ColorSilver
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless Card802.11n Wi-Fi wireless networking;2 IEEE 802.11a/b/g compatible
Monitor21.5-inch glossy LED-backlit TFT LCD display, 1920x1080 resolution with IPS
KeyboardUSB Keyboard
MouseOptical Mouse
Operating SystemmacOS 10.12 Sierra
Special FeaturesFaceTime HD camera, SDXC card slot, Four USB 3 ports, Two Thunderbolt ports, Mini DisplayPort output
CPU TypeIntel Core i5
CPU Name2.80GHz
GPU/VGA TypeIntel Iris Pro Graphics 6200
Memory Capacity8GB DDR4
Maximum Memory Supported16 GB
SSDNo
HDD1TB
HDD RPM7200rpm
Optical Drive TypeNo
Screen Size21.5"
TouchscreenNo
Screen TypeNon-Touch Screen
Display FeatureAnti-reflective IPS
LAN Speed10/100/1000Mbps
WLAN802.11a/b/g/n Wireless LAN
BluetoothBluetooth 4.0
Card ReaderYes
Video Ports2 Thunderbolt
Rear USB4
RJ451 port
Keyboard TypeUSB Keyboard
Mouse TypeOptical
Speaker ConfigurationInternal Speaker
Weight12.5 pounds

Questions about this item

How loud is the fan on the 21.5-inch iMac when it runs all day?

The all-in-one design uses a single low-speed fan that stays quiet during typical workloads; under sustained load the fan ramps up but remains at a low audible level in a normal room.

Do I need to buy a separate keyboard and mouse for the MK442LL/A to work?

No, a USB keyboard and an optical mouse are included in the box so the system is ready to use immediately.

Can I keep using my older Thunderbolt display with the two Thunderbolt ports on this iMac?

Yes, the two Thunderbolt ports support daisy-chaining an existing Thunderbolt display while still leaving one port free for other devices.

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