Apple iMac (MRT42LL/A) 21.5" Intel Core i5 6-Core 3.0GHz Computer - English

Model Number: MRT42LL/A
Web Code: 13487960


The vision behind iMac has never wavered: transform the desktop experience by fitting powerful, easy-to-use technology into an elegant, all-in-one design. iMac takes that idea to the next level by giving you an iMac packed with the latest processors, faster memory, and phenomenal graphics. All coming to life on the brightest, most vibrant Retina display ever.
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3 Years


4 Years


  • 21.5-inch iMac with Retina 4K display
  • 3.0GHz 6-core Intel Core i5
  • 8GB of 2666MHz DDR4
  • 1TB Fusion
  • Radeon Pro 560X with 4GB VRAM

Base Features

Pre-loaded Operating System
Operating System Language
Processor Type
Intel Core i5
Processor Speed
3.0 GHz
Processor Cores
RAM Size
8 GB
Graphics Card
Radeon Pro 560X
Dedicated Graphic Card
Video Memory
4 GB


Built-in Monitor
Screen Size/Type
21.5-inch Retina
Native Screen Resolution
4096 x 2304
Touchscreen Display


Ethernet Port
10/100/1000BASE-T Gigabit
Integrated Wi-Fi
Integrated Bluetooth
Yes - 4.2

Inputs & Outputs

Card Reader
USB Ports
4 x USB 3; 2 x Thunderbolt 3 (USB-C)

Product Features

Dimensions (cm)
52.8 (W) x 45 (H) x 17.5 (D) cm
Dimensions (in)
20.79 (W) x 17.72 (H) x 6.89 (D) in
5.6 kg
Weight (lbs)
12.35 lb
  • 21.5‑inch iMac with Retina 4K Display
  • Magic Keyboard
  • Magic Mouse 2
  • Power Cord
  • Lightning to USB Cable

  • Love the apple products
    by Dawn

    on November 24, 2019

    My all in one HP took a dive after a year. Purchased the iMac and love it!

    Review originally posted on

  • Yes
    by Mokhcin

    on November 24, 2019

    Great product no issue at all. Easy to use love apple products

    Review originally posted on

  • Mac
    by Ebee68

    on November 23, 2019

    Apple products are the best!! Good buy Microsoft. Never have to worry about viruses, malware, none of that. I apparently have to submit no less than 50 characters. So, love love love the Mac.

    Review originally posted on

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