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Silver all-in-one desktop with 21.5-inch Retina 4K display on minimal stand

Apple

Apple iMac 21.5" 2017 Core i5 3.6GHz 16GB 1TB HDD 32GB SSD desktop PC

SKU CH-BKK6-FMK1S

A 21.5-inch Retina 4K all-in-one desktop with a 3.6GHz quad-core Core i5, 16GB DDR4, 1TB HDD plus 32GB SSD, and Radeon Pro 555 2GB GDDR5 graphics

  • RAM capacity16 GB
  • SSD storage32 GB
  • Hard drive1 TB
  • Retina 4K display delivers 4096 x 2304 resolution at 500 nits brightness
  • Quad-core Intel Core i5 at 3.6GHz handles everyday workloads smoothly
  • 16GB DDR4 memory keeps multiple apps responsive
  • 1TB HDD plus 32GB SSD combines capacity with faster boot times
  • Radeon Pro 555 with 2GB GDDR5 drives crisp visuals for creative tasks

All-in-one desktop with Retina 4K display

The Apple iMac 21.5-inch (2017) is a new all-in-one desktop computer built around a 21.5-inch Retina 4K display with 4096 x 2304 resolution and 500 nits brightness. It runs on an Intel Core i5 quad-core processor at 3.6GHz with 16GB DDR4 memory. Storage combines a 1TB HDD and a 32GB SSD. Radeon Pro 555 graphics with 2GB GDDR5 handle visuals.

Upgrade from non-Retina or Fusion Drive iMacs

This model replaces earlier 21.5-inch iMacs that used standard 1080p panels or mechanical-only storage. The jump is worth it for users who need the P3 wide colour gamut and the responsiveness of the 32GB SSD cache for boot and app launch. Buyers who require larger internal SSD capacity or user-upgradable memory will not be served by this sealed design.

Professional installation recommended for internal

The all-in-one enclosure integrates the display and logic board, so memory and storage are not user-accessible without specialised tools and adhesive kits. Opening the unit risks damaging the display assembly or the thermal sensors. External peripherals connect easily via two Thunderbolt 3 (USB-C) ports and four USB-A ports.

How it compares

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

Price $404.99
Cheaper than about 58% of the 14,711 comparable items (median $494.99).
RAM capacity 16 GB
Typical for this category: the median of 13,125 items is 16 GB.
SSD storage 32 GB
Lower than about 99% of the 11,342 comparable items (median 512 GB).

Specifications

Memory
RAM capacity16 GB
Storage
SSD storage32 GB
Hard drive1 TB

Questions about this item

What clearance does the 21.5-inch Retina 4K display need for desk placement?

The all-in-one design integrates the 4096 x 2304 panel into the chassis, so only a flat surface wide enough for the 21.5-inch footprint and space behind for cable routing are required.

How is the 16GB DDR4 memory installed, and what step is commonly missed?

The memory is factory-soldered and not user-upgradable; the step people miss is assuming DIMM slots exist, so plan for the 16GB capacity at purchase.

What maintenance will the 1TB HDD and 32GB SSD fusion drive need later?

The mechanical 1TB HDD may eventually require replacement if it develops bad sectors, while the 32GB SSD portion has no moving parts and typically lasts the system's life.

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