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Slim aluminium all-in-one desktop with 21.5 inch Retina 4K display

Apple

Apple iMac 21.5 Retina 4K (Late 2015) MK452LL/A Core i5 3.1GHz 8GB DDR3 1TB HDD desktop PC

SKU CH-J99W-FXM7W

A 21.5-inch Retina 4K all-in-one desktop with a 3.1GHz Intel Core i5 quad-core processor, 8GB DDR3 memory and a 1TB 5400rpm hard drive

  • MonitorMonitor included
  • CPU TypeIntel Core i5
  • CPU Base Frequency3.10GHz
  • CPU Main Features64 bit Quad-Core Processor
  • Memory Capacity8GB DDR3
  • Memory SpeedDDR3 1866
  • 5-inch Retina 4K display at 4096×2304 resolution for ultrasharp visuals
  • 1GHz Intel Core i5 quad-core processor with Turbo Boost up to 3.6GHz
  • 8GB 1867MHz LPDDR3 memory for smooth multitasking
  • 1TB 5400rpm hard drive for extensive data storage
  • 11ac Wi-Fi 5 and Bluetooth 4.0 for modern connectivity

All-in-one desktop for creative work

The Apple iMac 21.5 Retina 4K (Late 2015) combines a 21.5-inch display with a 3.1GHz Intel Core i5 quad-core processor and 8GB of LPDDR3 memory. It targets creative professionals and everyday users who want a space-saving system with integrated visuals. The 1TB 5400rpm hard drive stores documents, media and applications. This unit is supplied in new condition.

Retina 4K display and connectivity limits

The 4096×2304 Retina 4K panel delivers ultra-sharp visuals and vibrant colours without a touchscreen option. Wireless connectivity uses 802.11ac Wi-Fi 5 and Bluetooth 4.0, which cap throughput and peripheral support at those standard generations. The all-in-one chassis fixes the screen size and prevents display upgrades or external GPU attachment. Memory is soldered LPDDR3, so capacity cannot be increased after purchase.

Capacity and headroom for daily workloads

Eight gigabytes of 1867MHz LPDDR3 handles typical multitasking and creative apps, but heavier video editing or virtual machines will exhaust the available RAM. The 1TB 5400rpm hard drive offers ample space for large libraries, yet its rotational speed limits boot and load times compared with solid-state storage. Turbo Boost up to 3.6GHz provides short bursts of extra compute for demanding tasks.

商品特色

  • 5-inch Retina 4K display at 4096×2304 resolution for ultrasharp visuals
  • 1GHz Intel Core i5 quad-core processor with Turbo Boost up to 3.6GHz
  • 8GB 1867MHz LPDDR3 memory for smooth multitasking
  • 1TB 5400rpm hard drive for extensive data storage
  • 11ac Wi-Fi 5 and Bluetooth 4.0 for modern connectivity

商品規格

BrandApple
SeriesiMac
MonitorMonitor included
CPU TypeIntel Core i5
CPU Base Frequency3.10GHz
CPU Main Features64 bit Quad-Core Processor
Memory Capacity8GB DDR3
Memory SpeedDDR3 1866
HDD1TB
HDD RPM5400rpm
Screen Size21.5"
TouchscreenNo
Screen TypeNon-Touch Screen
WLAN802.11ac Wireless LAN
WiFi GenerationWi-Fi 5
BluetoothBluetooth 4.0

商品問答

Should I choose the 8 GB DDR3 memory or look for a larger capacity?

This iMac ships with 8 GB of DDR3 1866 MHz memory soldered to the board, so the capacity cannot be upgraded later.

What does the 3.1 GHz Core i5 speed mean for everyday tasks?

The quad‑core processor runs at 3.1 GHz base and can Turbo Boost to about 3.6 GHz, giving responsive performance for web browsing, office apps and light creative work.

How fast is the 802.11ac Wi‑Fi connection in practice?

The 802.11ac (Wi‑Fi 5) adapter supports typical real‑world throughput of several hundred megabits per second, sufficient for HD streaming and large downloads.

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