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Crucial 32GB DDR5 RAM, 4800MHz CL40 Desktop Memory, UDIMM 288-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000s - CT32G48C40U5
Crucial

Crucial 32GB DDR5 RAM (CT32G48C40U5)

Bottom line: The Crucial 32GB DDR5 RAM: Single 32GB UDIMM leaves a second DIMM slot open for a later 64GB upgrade; main trade-off: CL40 latency is loose; 6000MHz CL30 kits are quicker in latency-sensitive games.

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

Mike Perry — Hardware researcher since 2014. For desktop and laptop memory upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Single 32GB UDIMM leaves a second DIMM slot open for a later 64GB upgrade
  • ✓ Runs at 1.1V versus DDR4's 1.2V, cutting idle power and heat in the DIMM area
  • ✓ Both Intel XMP 3.0 and AMD EXPO profiles on one module, so it moves between builds
  • ✓ Micron-made die and module, tested at component and module level

Cons

  • ✗ CL40 latency is loose; 6000MHz CL30 kits are quicker in latency-sensitive games
  • ✗ 4800MHz is DDR5's base JEDEC speed, not an overclocked enthusiast bin
  • ✗ Non-ECC, so it rules out workstation and server builds needing error correction
  • ✗ Single stick runs single-channel until you buy a matching second module

Manufacturer description

The Crucial 32GB DDR5 RAM (CT32G48C40U5) is a single 288-pin UDIMM built for desktops running 13th Gen Intel Core or AMD Ryzen 7000 Series processors. It runs at 4800MHz with CL40 timings on the PC5-38400 standard, and the 1.1V operating voltage keeps power draw lower than the 1.2V DDR4 modules it replaces. Thirty-two gigabytes on a single stick means you can fill one slot now and add a second later, which matters if you are editing 4K timelines, running several Chrome profiles alongside a game, or keeping virtual machines resident while you work. Crucial is Micron's consumer brand, so the…

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SpecPicks Verdict

SpecPicks scored Crucial 32GB DDR5 RAM 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.

Frequently Asked Questions

Will this work in my AMD Ryzen 7000 build?

Yes. Crucial lists the CT32G48C40U5 as optimized for AMD Ryzen 7000 Series and 13th Gen Intel Core processors, and AMD EXPO is supported on the module. Confirm your specific motherboard's QVL before ordering.

Is this one 32GB stick or a 2x16GB kit?

It is a single 32GB 288-pin UDIMM module, not a two-stick kit. That means it runs in single-channel mode on its own; pair it with a second identical module for dual-channel operation.

What are the speed and timings?

4800MHz at CAS Latency 40, which is the PC5-38400 standard, running at 1.1V. This is DDR5's baseline JEDEC specification rather than a factory-overclocked speed bin.

Does it support XMP for overclocking?

The module supports Intel XMP 3.0 and AMD EXPO profiles. Since 4800MHz CL40 is already the JEDEC base speed for DDR5, treat these profiles as a compatibility and downclocking convenience rather than a path to higher clocks.

Is this ECC memory suitable for a server?

No. The spec sheet lists ECC Type as Non-ECC, so there is no error correction. It is built for gaming, content creation, and general desktop use, not for servers or workstations that require ECC.

Key Features

  • Boosts System Performance: 32GB DDR5 RAM desktop memory that operates at 4800MHz to improve multitasking and system responsiveness for smoother performance
  • Accelerated gaming performance: Every millisecond gained in fast-paced gameplay counts—power through heavy workloads and benefit from versatile downclocking and higher frame rates
  • Optimized DDR5 compatibility: Best for 13th Gen Intel Core and AMD Ryzen 7000 Series processors — Intel XMP 3.0 and AMD EXPO also supported on the same RAM module
  • Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR5 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability
  • ECC Type = Non-ECC, Form Factor = UDIMM, Pin Count = 288-pin, PC Speed = PC5-38400, Voltage = 1.1V

Full Specifications

BrandCrucial
Voltage1.1 volts
RAM Size32 GB
Model NameCrucial DDR5 UDIMM
Unit Count1 Count
Form FactorDIMM
Memory Speed4800 MHz
Model NumberCT32G48C40U5
CompatibilityPC
Item Type NameDDR5 Desktop Memory
Number of Pins288
Mfr Part NumberCT32G48C40U5
Number of Items1
Memory GenerationDDR5
Compatible DevicesDesktop
Data Transfer Rate4800 MHz
Memory Form FactorUDIMM
Additional FeaturesLightweight
Computer Memory Size32 GB
Warranty DescriptionLimited Lifetime
Full listing titleCrucial 32GB DDR5 RAM, 4800MHz CL40 Desktop Memory, UDIMM 288-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000s - CT32G48C40U5

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Crucial 32GB DDR5 RAM, 4800MHz CL40 Desktop Memory, UDIMM 288-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000s - CT32G48C40U5 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 DDR5 RAM, 4800MHz CL40 Desktop Memory, UDIMM 288-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000s - CT32G48C40U5
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