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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

  • Screen size21.5 in (54.6 cm)
  • ProcessorIntel Core i5
  • RAM capacity8 GB DDR4
  • SSD storageNo
  • GraphicsIntel Iris Pro Graphics 6200
  • CPU model2.8 GHz
  • 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.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $221.99
Cheaper than about 86% of the 14,711 comparable items (median $494.99).
Screen size 21.5 in (54.6 cm)
Lower than about 90% of the 2,278 comparable items (median 22 in).
RAM capacity 8 GB DDR4
Lower than about 80% of the 13,125 comparable items (median 16 GB).

Specifications

Product
Brand nameApple
Product lineiMac
Part numberMK442LL/A
Product typeAll-in-One PC
Product colorSilver
Performance
Spindle speed7,200 rpm
Processor
ProcessorIntel Core i5
CPU model2.8 GHz
Memory
RAM capacity8 GB DDR4
Max supported RAM16 GB
Storage
SSD storageNo
Hard drive1 TB
Optical driveNo
Display
Screen size21.5 in (54.6 cm)
Touch inputNo
Type of screenNon-Touch Screen
Display capabilitiesAnti-reflective IPS
Graphics
GraphicsIntel Iris Pro Graphics 6200
Audio & video
SoundSound card - Integrated
Speaker setupInternal Speaker
Connectivity
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wireless adapter802.11n Wi-Fi wireless networking;2 IEEE 802.11a/b/g compatible
Wi-Fi802.11a/b/g/n Wireless LAN
Bluetooth support4.0
Ports & slots
Memory card readerYes
Video connectors2 Thunderbolt
Rear USB ports4
Ethernet port1 port
Size & build
Form factorAll-in-One
Product weight12.5 lb (5.67 kg)
In the box
Included monitor21.5 in glossy LED-backlit TFT LCD display, 1920 × 1080 resolution with IPS
Bundled mouseOptical Mouse
Pointing deviceOptical
Software
Operating systemMacOS 10.12 Sierra
More details
KeyboardUSB Keyboard
Keyboard typeUSB Keyboard

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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