4.0GB (1 x 4.0GB) PC4-21300 DDR4 2666MHz SO-DIMM 260 Pin RAM - Macfixit — Macfixit Australia
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4.0GB (1 x 4.0GB) DDR4 SO-DIMM 260 Pin RAM Macfixit Australia

4.0GB (1 x 4.0GB) DDR4 SO-DIMM 260 Pin RAM

SKU RM2666DDR4S4GB
by Macfixit Australia
$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99

This item is in stock and will ship within 24 hours.

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4.0GB Memory Upgrade

4GB 2666MHz DDR4 SO-DIMM PC4-21300

Quality Mac memory from SK hynix, Micron, Crucial or OWC. Pre-owned, tested and fully working. Brand may vary – we may send any of these brands, and every module meets the same JEDEC specification listed below.

Product Specs:

  • Technology: DDR4 SO-DIMM
  • Density: 4GB (4096MB)
  • Speed: 2666MHz (PC4-21300 / PC4-2666V)
  • Pin Count: 260-pin
  • CL: 19
  • Cycle Time: 0.75ns
  • Voltage: 1.2V
  • ECC: Non ECC
  • Register: Unbuffered
  • Op. Temp.: 0C to +85C
  • Condition: Pre-owned, tested
  • Fully compliant with JEDEC specifications
  • RoHS compliant

This Memory is compatible with...

  • iMac (Retina 5K, 27-inch, 2020) – Model ID: iMac20,1 / iMac20,2 – 4 user-accessible slots
  • iMac (Retina 5K, 27-inch, 2019) – Model ID: iMac19,1 – 4 user-accessible slots
  • iMac (Retina 4K, 21.5-inch, 2019) – Model ID: iMac19,2 – 2 slots (not user-accessible; installation requires opening the display)
  • Mac mini (2018) – Model ID: Macmini8,1 – 2 slots (not user-accessible; installation requires removing the logic board)

Also works in (runs at the computer's native 2400MHz):

  • iMac (Retina 5K, 27-inch, 2017) – Model ID: iMac18,3
  • iMac (Retina 4K, 21.5-inch, 2017) – Model ID: iMac18,2
  • iMac (21.5-inch, 2017) – Model ID: iMac18,1

Not compatible with Apple Silicon Macs (M1 and later), MacBook / MacBook Air / MacBook Pro (memory is soldered), iMac Pro or Mac Pro (these require ECC memory).

To find your Mac's model, choose Apple menu > About This Mac. For best performance, install memory in matched pairs.

  • Capacity: 4GB (4096MB) - 1 x 4GB module
  • Technology: DDR4 SO-DIMM
  • Speed: 2666MHz (PC4-21300 / PC4-2666V)
  • Pin Count: 260-pin
  • CAS Latency: CL19
  • Voltage: 1.2V
  • ECC: Non-ECC
  • Register: Unbuffered
  • Brand: SK hynix, Micron, Crucial or OWC (brand may vary)
  • Condition: Pre-owned, tested
  • Compatible: iMac 27" Retina 5K 2019/2020, iMac 21.5" Retina 4K 2019, Mac mini 2018, iMac 2017 (runs at 2400MHz)

  • Australian Owned & Operated
    Macfixit Australia     is proudly Australian owned and operated, based in Melbourne, Victoria, and serving customers since 2005.
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Great product, fast postage and very happy customer. Will definitely purchase again from MacFixIT. Thanks again A+++++

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Great product, fast postage and very happy customer. Will definitely purchase again from MacFixIT. Thanks again A+++++

Adrian Janusz

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The real gem is the integrated smartphone app with guided classes and body tracking. I really like it.

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The real gem is the integrated smartphone app with guided classes and body tracking. I really like it.

Lara S.

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The real gem is the integrated smartphone app with guided classes and body tracking. I really like it.

Lara S.

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The real gem is the integrated smartphone app with guided classes and body tracking. I really like it.

Lara S.

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