Apple

Apple MNDY2LL/A iMac 21.5" 4K Retina (Renewed)

4.4 (34 reviews)
4K4096x2304256GB SSD

A renewed 21.5-inch iMac with stunning 4K Retina display, quad-core i5 power, and sleek all-in-one design.

$329.00*$354.27Save 7%
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*Price sourced from Amazon.com. Last updated:Jun 08, 2026.Price and availability are subject to change.

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Overview

The Apple iMac 21.5-inch with Retina 4K Display (model MNDY2LL/A) packs a complete computing experience into its signature slim aluminum enclosure. At the heart of the machine is a 3.0GHz quad-core seventh-generation Intel Core i5 processor paired with 8GB of RAM and a 256GB SSD, providing snappy boot times and responsive application performance for everyday tasks like web browsing, office productivity, photo editing, and media consumption. The Radeon Pro 555 discrete graphics card adds enough capability for casual creative work and smooth 4K video playback.

The standout feature remains the 21.5-inch Retina 4K display running at 4096x2304 resolution, which renders text, images, and video with impressive clarity and color accuracy. Connectivity includes 802.11ac Wi-Fi, Bluetooth 4.2, and a built-in FaceTime HD camera for video calls. As a renewed unit, this iMac offers the same hardware experience at a reduced price point compared to buying new, making it an appealing option for home offices, students, or anyone who values a clutter-free desk and a beautiful display without the cost of a current-generation model.

Key Features

21.5-inch (diagonal) Retina 4K display (4096x2304 pixels)

3.0GHz quad-core Intel Core i5 processor

256GB SSD

8GB of memory

Radeon Pro 555 graphics

Specifications

Brand
Apple
Model
MNDY2LL/A
Display
21.5-inch Retina 4K (4096x2304)
Processor
3.0GHz quad-core Intel Core i5 (7th Gen)
Memory
8GB
Storage
256GB SSD
Graphics
Radeon Pro 555
Camera
FaceTime HD
Wi-Fi
802.11ac
Bluetooth
4.2
Operating System
macOS Mojave
Condition
Renewed

Pros & Cons

👍 Pros

  • Vibrant 4K Retina display at 4096x2304 resolution delivers sharp, color-accurate visuals
  • All-in-one design eliminates cable clutter and saves significant desk space
  • Quad-core i5 processor handles everyday computing tasks and moderate creative workloads
  • Renewed pricing makes the 4K iMac experience accessible at a lower cost than buying new
  • Built-in FaceTime HD camera and 802.11ac Wi-Fi for video calls and fast wireless connectivity

👎 Cons

  • RAM is soldered at 8GB and cannot be upgraded, which may limit multitasking with demanding applications
  • 256GB SSD fills up quickly for users with large photo, video, or music libraries
  • Radeon Pro 555 graphics are adequate for casual use but not suited for intensive video editing or 3D work
  • As a renewed unit, cosmetic imperfections such as minor scratches or scuffs may be present
  • This 2017 model will eventually lose support for future macOS updates

Frequently Asked Questions

A renewed iMac has been inspected, tested, and restored to working condition by a qualified refurbisher. It may show minor cosmetic signs of use but is fully functional.
The 21.5-inch iMac (2017) has soldered RAM that cannot be upgraded after purchase. The SSD storage is also not user-upgradeable on this model.
It ships with macOS Mojave, but it can be updated to later versions of macOS depending on Apple's compatibility support for this model year.
Renewed units may or may not include original peripherals depending on the seller. Check the specific listing details to confirm whether a keyboard and mouse are included.