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OWC Memory 32GB (2X 16GB) DDR4 PC4-19200 2400MHz RAM | 288-Pin Compatible with 27 and 21.5 iMac (Mid 2017), PCs and with MP7N2G/A
OWC

OWC Memory 32GB (2X 16GB) DDR4 PC4-19200 2400MHz RAM

Bottom line: The OWC Memory 32GB DDR4 PC4-19200 2400MHz RAM: Two 16GB modules ship as a matched 32GB kit, no mixing guesswork; main trade-off: 21.5-inch non-Retina iMacs need a teardown, not a hatch.

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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

  • ✓ Two 16GB modules ship as a matched 32GB kit, no mixing guesswork
  • ✓ Explicitly rated for iMac18,1 / 18,2 / 18,3 Mid-2017 models
  • ✓ JEDEC-compliant 1.2V DDR4-2400, keeps Apple's warranty intact
  • ✓ Also drops into NAS, Synology, POS and all-in-one systems

Cons

  • ✗ 21.5-inch non-Retina iMacs need a teardown, not a hatch
  • ✗ Non-ECC, so unsuitable for ECC-required workstations
  • ✗ 2400MHz ceiling offers no headroom over stock Mac speeds
  • ✗ Listing text conflicts on pin count (288-pin vs 260-pin SO-DIMM)

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SpecPicks Verdict

SpecPicks scored OWC Memory 32GB DDR4 PC4-19200 2400MHz RAM using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. OWC'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

  • OWC 32.0GB UPGRADE: Consists of Two 16GB pc19200 ddr4 2400 mhz sodimms memory, 260-pin, 1.2 volts, non-registered, non-ecc, fully compliant with jedec specifications, rohs compliant, warranty safe upgrade
  • COMPATIBLE WITH: 2017 iMac: iMac w/Retina 5K display (27 inch mid 2017) Model ID: iMac18,3 (3.4GHz & 3.5GHz & 3.8GHz Core i5 & 4.2GHz Core i7)
  • COMPATIBLE WITH: 2017 iMac 21.5-inch: Model ID: iMac18,2 iMac w/Retina 4K display, 21.5-inch Mid 2017, (3.0GHz & 3.4GHz Core i5 & 3.6GHz Core i7); Model ID: iMac18,1 iMac Mid 2017 2.3GHz Core i5
  • COMPATIBLE WITH: PC Laptop, PC Notebook, All in One Computers, NAS, Synology, POS systems
  • INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance in Your Mac Pro

Full Specifications

BrandOWC
Weight2g
Voltage1.2 volts
RAM Size32 GB
Model NameOWC2400DDR4S32P
Unit Count2 Count
Form FactorSO-DIMM
Memory Speed2400 MHz
Model NumberOWC2400DDR4S32P
CompatibilityPC, Mac
Number of Pins260
COMPATIBLE WITH2017 iMac: iMac w/Retina 5K display (27 inch mid 2017) Model ID: iMac18,3 (3.4GHz & 3.5GHz & 3.8GHz Core i5 & 4.2GHz Core i7)
Mfr Part NumberOWC2400DDR4S32P
Number of Items2
Number of Packs2
Memory GenerationDDR4
Compatible DevicesLaptop
Data Transfer Rate2400 MHz
Memory Form FactorSODIMM
Additional FeaturesLightweight
Full listing titleOWC Memory 32GB (2X 16GB) DDR4 PC4-19200 2400MHz RAM | 288-Pin Compatible with 27 and 21.5 iMac (Mid 2017), PCs and with MP7N2G/A

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OWC Memory 32GB (2X 16GB) DDR4 PC4-19200 2400MHz RAM | 288-Pin Compatible with 27 and 21.5 iMac (Mid 2017), PCs and with MP7N2G/A 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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OWC Memory 32GB (2X 16GB) DDR4 PC4-19200 2400MHz RAM | 288-Pin Compatible with 27 and 21.5 iMac (Mid 2017), PCs and with MP7N2G/A
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