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Timetec 32GB KIT (2x16GB) RAM Compatible with Apple 2017 iMac (27-inch 5K Retina, 21.5-inch 4K or Non-Retina) DDR4 2400MHz PC4-19200 SODIMM Mac Memory Upgrade for 18,1/18,2/18,3
Timetec

Timetec 32GB KIT (2x16GB) RAM

Bottom line: The Timetec 32GB KIT RAM: 32GB kit (2x16GB) doubles capacity for heavy multitasking on 2017 iMacs; main trade-off: fits only 2017 iMac models, not earlier or later model years.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 32GB kit (2x16GB) doubles capacity for heavy multitasking on 2017 iMacs
  • ✓ Drop-in match for 2017 iMac 18,1, 18,2 and 18,3 model IDs
  • ✓ DDR4 2400MHz PC4-19200 SODIMM matches Apple's stock memory spec
  • ✓ Guaranteed lifetime warranty plus free US-based tech support

Cons

  • ✗ Fits only 2017 iMac models, not earlier or later model years
  • ✗ Non-ECC memory, no error correction for ECC-dependent workflows
  • ✗ Locked at 2400MHz; runs at Apple's spec with no headroom
  • ✗ Self-install required; 21.5-inch iMacs are harder to open

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SpecPicks Verdict

SpecPicks scored Timetec 32GB KIT RAM using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. Timetec's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Compatible For Apple 2017 iMac 27-inch w/Retina 5K Display model ID: iMac 18,3 (i5 3.4GHz, i5 3.5GHz, i5 3.8GHz, i7 4.2GHz)
  • Compatible For all Apple 2017 iMac 21.5-inch w/Retina 4K Display or Non-Retina Display model ID: iMac 18,2 (i5 3.0GHz, i5 3.4GHz, i7 3.6GHz) and iMac 18,1 (i5 2.3GHz)
  • DDR4 2400MHz PC4-19200 260 Pin Unbuffered Non-ECC 1.2V CL17 Dual Rank 2Rx8 based 1024x8
  • Module Size: 32GB Package: 2x16GB Power Supply: VDD=1.2V (1.14V to 1.26V) VDDQ = 1.2V (1.14V to 1.26V)
  • Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States

Full Specifications

BrandTimetec
Voltage1.2 volts_of_alternating_current
RAM Size16 GB
Model Name78AP24NUS2R8-8G
Unit Count2 Count
Form FactorMac
Module Size32GB Package: 2x16GB Power Supply: VDD=1.2V (1.14V to 1.26V) VDDQ = 1.2V (1.14V to 1.26V)
Memory Speed2400 microhertz
Model Number7
CompatibilityMac
Number of Pins260
Mfr Part Number7
Number of Items2
Number of Packs2
Memory GenerationDDR4
Compatible DevicesMac
Data Transfer Rate2400 MHz
Memory Form FactorSODIMM
Additional FeaturesMac
Computer Memory Size16 GB
Full listing titleTimetec 32GB KIT (2x16GB) RAM Compatible with Apple 2017 iMac (27-inch 5K Retina, 21.5-inch 4K or Non-Retina) DDR4 2400MHz PC4-19200 SODIMM Mac Memory Upgrade for 18,1/18,2/18,3

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Timetec 32GB KIT (2x16GB) RAM Compatible with Apple 2017 iMac (27-inch 5K Retina, 21.5-inch 4K or Non-Retina) DDR4 2400MHz PC4-19200 SODIMM Mac Memory Upgrade for 18,1/18,2/18,3 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Timetec 32GB KIT (2x16GB) RAM Compatible with Apple 2017 iMac (27-inch 5K Retina, 21.5-inch 4K or Non-Retina) DDR4 2400MHz PC4-19200 SODIMM Mac Memory Upgrade for 18,1/18,2/18,3
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