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Crucial 32GB, 288-pin DIMM, DDR4 PC4-21300,
Crucial

Crucial 32GB, 288-pin DIMM, DDR4 PC4-21300,

Bottom line: The Crucial 32GB is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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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

  • ✓ 288-pin DIMM
  • ✓ Backed by Crucial's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Specifications Mfr Part Number: CT32G4RFD4266 Type: DDR4 capacity: 32GB speed: PC4-21300 2666MHz size & bit: 2G x 4 pins: 288pin ECC: Yes registered: Yes dual rank x4 CL 19, 1.2V

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SpecPicks Verdict

SpecPicks scored Crucial 32GB using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. Crucial'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

  • 288-pin DIMM
  • DDR4-2666

Full Specifications

BrandCrucial
Voltage1.2 Volts
RAM Size32 GB
Model NameCrucial
Unit Count1.0 Count
Form FactorDIMM
Memory Speed2666 MHz
Model NumberCT32G4RFD4266
Built-In MediaCrucial RAM memory
Item Type NameRAM Memory - 32GB - DDR4 SDRAM
Number of Pins288
Mfr Part NumberCT32G4RFD4266
Memory GenerationDDR4
Compatible DevicesDesktop
Data Transfer Rate2666 MHz
Memory Form FactorRDIMM
Computer Memory Size32 GB
Warranty DescriptionLimited lifetime warranty
RAM Memory TechnologyDDR4
Column Address Strobe Latency19

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Crucial 32GB, 288-pin DIMM, DDR4 PC4-21300, 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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Crucial 32GB, 288-pin DIMM, DDR4 PC4-21300,
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