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Silver all-in-one desktop with 21.5 inch Retina 4K display and tapered aluminum rear

Apple

Apple MRT32LL/A desktop PC

SKU CH-J5JN-GST8S MPN MRT32LL/A

A 21.5-inch all-in-one desktop with a Retina 4K display, 3.6 GHz Intel Core i3 processor, 8GB DDR4 memory, 1TB Fusion Drive and Radeon Pro 555X graphics

  • Screen size21.5 in (54.6 cm)
  • ProcessorIntel Core i3 8th Gen
  • Memory size8 GB of 2400 MHz DDR4 memory
  • Storage drive1 TB Serial ATA Drive -
  • GraphicsAMD Radeon Pro 555X
  • CPU8th Generation Intel Core i3 QUAD -Core processor

Memory Capacity 8GB DDR4

  • 5-inch Retina 4K display shows 4096-by-2304 resolution with one billion colors
  • 6 GHz Intel Core i3 quad-core processor handles everyday tasks smoothly
  • 8GB of 2400MHz DDR4 memory keeps multiple apps responsive
  • Radeon Pro 555X graphics with 2GB GDDR5 accelerates creative workloads
  • Thunderbolt 3 and USB 3 ports connect peripherals and external displays

21.5-inch Retina 4K all-in-one

This 2019 iMac combines a 21.5-inch Retina 4K display with an 8th Generation Intel Core i3 quad-core processor running at 3.6 GHz. It ships with 8 GB of 2400 MHz DDR4 memory and a 1 TB Fusion Drive that pairs a 32 GB SSD with a 5400 RPM hard disk. Integrated Radeon Pro 555X graphics with 2 GB of GDDR5 memory drive the 4096-by-2304 panel.

Thermals and acoustics in daily use

The all-in-one aluminium enclosure tapers to 5 mm at the edges, housing the processor, graphics and storage behind the display. Under typical office workloads the cooling system manages heat from the 14 nm Coffee Lake chip and Radeon Pro 555X without audible fan noise. Power draw stays modest during web browsing, document editing and media playback.

Included accessories and software impact

A Magic Keyboard and Magic Mouse 2 are included, connecting instantly via Bluetooth 4.2 for cable-free setup. Two Thunderbolt 3 ports and four USB 3 ports support external storage, additional displays and high-speed peripherals without adapters. macOS provides continuity features such as AirDrop, Handoff and Universal Clipboard across Apple devices.

How it compares

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

Price $284.99
Cheaper than about 74% 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).
Memory size 8 GB of 2400 MHz DDR4 memory
Lower than about 80% of the 5,840 comparable items (median 16 GB).

Specifications

Product
Brand nameApple
Product lineiMac
Model nameMRT32LL/A
Part numberA2116 – 3195
Product typeAll-in-One PC
Recommended useOthers
Product colorSilver
Processor
ProcessorIntel Core i3 8th Gen
CPU8th Generation Intel Core i3 QUAD -Core processor
CPU model3.6 GHz
Memory
Memory size8 GB of 2400 MHz DDR4 memory
RAM capacity8 GB DDR4
RAM type and speedDDR4 2400
Memory configuration8 GB
Max supported RAM32 GB
Storage
Storage drive1 TB Serial ATA Drive -
SSD storage24 GB
Hard drive1 TB
Storage configuration1 TB Serial ATA Hard Drive (1,000 GB)
Disc driveNO
Drive interfaceSATA
Optical driveNo
Display
Screen size21.5 in (54.6 cm)
Touch inputNo
Type of screenNon-Touch Screen
Graphics
GraphicsAMD Radeon Pro 555X
GPURadeon Pro 555X with 2 GB of GDDR5 memory
GPU modelRadeon Pro 555X with 2 GB of GDDR5 memory
GPU interfaceIntegrated video
Audio & video
SoundSound card - Integrated
SpeakersYes
Speaker setupInternal Speaker
Connectivity
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wireless adapter802.11ac Wi-Fi wireless networking
Wi-Fi802.11ac Wireless LAN
Bluetooth support4.2
Ports & slots
Thunderbolt 3 supportYes
Rear USB ports4
Ethernet port1 port
Size & build
Form factorAll-in-One
Product weight12.3 lb (5.58 kg)
In the box
Included monitorIncluded
Pointing deviceUSB Mouse
More details
KeyboardYes
Keyboard typeStandard

Other versions of this model

1 more in the same range

Questions about this item

How is the 2400MHz DDR4 memory installed in the iMac, and what step do people often get wrong?

The memory is built into the computer but can be upgraded later; the step people get wrong is assuming it is user-accessible without specialised tools and significant disassembly.

What maintenance or replacement will the 1TB Fusion Drive need later?

The Fusion Drive combines a 32 GB SSD with a 1 TB 5400 RPM hard drive; the mechanical portion will eventually wear out and require replacement of the full drive assembly.

What limit appears first on the Radeon Pro 555X with 2GB GDDR5 during sustained heavy workloads?

The 2 GB GDDR5 video memory capacity is the first limit reached during sustained heavy graphics workloads, restricting texture and frame-buffer space.

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