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Adamanta 32GB (4x8GB) Apple Memory Upgrade Compatible with Late 2015 iMac 27" Retina 5K Display DDR3/DDR3L 1867Mhz PC3L-14900 SODIMM 2Rx8 CL13 1.35v RAM DRAM
Adamanta

Adamanta 32GB (4x8GB) Apple Memory Upgrade

Bottom line: The Adamanta 32GB Apple Memory Upgrade: Full 32GB kit (4x8GB) fills all four slots on the late 2015 27-inch iMac; main trade-off: locked to late 2015 27-inch 5K iMacs - no use in other Macs or PCs.

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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

  • ✓ Full 32GB kit (4x8GB) fills all four slots on the late 2015 27-inch iMac
  • ✓ 1867MHz PC3L-14900 SODIMM matches Skylake iMac spec exactly
  • ✓ Limited lifetime warranty from Adamanta on the modules themselves
  • ✓ Every module factory-tested before shipping

Cons

  • ✗ Locked to late 2015 27-inch 5K iMacs - no use in other Macs or PCs
  • ✗ DDR3L is an aging standard with no upgrade path beyond this machine
  • ✗ Warranty excludes physical and cosmetic damage
  • ✗ 4x8GB layout means no free slots for a later capacity bump

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SpecPicks Verdict

SpecPicks scored Adamanta 32GB Apple Memory Upgrade using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. Adamanta'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 with: MK462LL/A, MK482LL/A, MK472LL/A, refurbished, and all built to order late 2015 iMacs 27 inch with 5K Retina Display.
  • 32GB ( 4x8GB ) DDR3L 1867 Mhz Late 2015 iMac Unbuffered Non-Parity SDRAM 204pin Low Voltage Dual Rank Module. Works with all iMacs with Skylake Processors. This module works for 27" late 2015 iMac's of every spec.
  • Limited lifetime warranty by Adamanta. We will replace defective memory with the same or similar memory specifications. Physical or cosmetic damages are not covered by the limited lifetime warranty by Adamanta. Only limited to Adamanta branded Memory.
  • Every single module is fully tested by the manufacturer.
  • Our experienced technicians can verify if these parts will work for you.

Full Specifications

BrandAdamanta
Voltage1.35 volts
RAM Size32 GB
Unit Count4 Count
Form Factor204-PIN
Memory Speed1867 MHz
Model NumberAM42SE21G64-NR
Number of Pins204
Compatible withMK462LL/A, MK482LL/A, MK472LL/A, refurbished, and all built to order late 2015 iMacs 27 inch with 5K Retina Display.
Mfr Part NumberAM42SE21G64-NR L15 (4)
Number of Items1
Memory GenerationDDR3L
Compatible DevicesDesktop
Data Transfer Rate1867 MHz
Memory Form FactorSODIMM
Additional FeaturesLightweight
Computer Memory Size32 GB
RAM Memory TechnologyDDR3
Column Address Strobe Latency13
Full listing titleAdamanta 32GB (4x8GB) Apple Memory Upgrade Compatible with Late 2015 iMac 27" Retina 5K Display DDR3/DDR3L 1867Mhz PC3L-14900 SODIMM 2Rx8 CL13 1.35v RAM DRAM

Ready to buy?

Adamanta 32GB (4x8GB) Apple Memory Upgrade Compatible with Late 2015 iMac 27" Retina 5K Display DDR3/DDR3L 1867Mhz PC3L-14900 SODIMM 2Rx8 CL13 1.35v RAM DRAM 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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Adamanta 32GB (4x8GB) Apple Memory Upgrade Compatible with Late 2015 iMac 27" Retina 5K Display DDR3/DDR3L 1867Mhz PC3L-14900 SODIMM 2Rx8 CL13 1.35v RAM DRAM
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