Crucial

Crucial CP32G56C46U5.C16D 32GB

Capacity:: 32GB
DDR Generation:: DDR5
Speed:: 5600MT/s
CAS Latency:: CL46

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Manufacturer: Crucial Last updated: 2026-09-14

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Crucial CP32G56C46U5.C16D 32GB Review

The Crucial CP32G56C46U5.C16D is another packaging variant of Crucial's Pro 32GB DDR5-5600 CL46 desktop module, same spec as the C16B2 suffix version, just a different retail/vendor code.

We'd buy it exactly like the CP32G56C46U5.C16B2 already in this catalog, it's the same certified Crucial Pro module, so pick whichever suffix your retailer has in stock.

Performance

Identical spec to the rest of Crucial's Pro 5600MT/s CL46 lineup: about 16.4ns true latency, dual XMP 3.0/EXPO certification, and the black heat-spreader look. The C16D suffix is a packaging/SPD-batch code, not a different bin.

Comparison to Alternatives

This is the same module as Crucial Pro CP32G56C46U5.C16B2 in this catalog, treat the two as interchangeable and buy on price. Against Crucial Pro CP16G56C46U5 (16GB single module, same speed/CL), get this 32GB version if you need double the capacity in one slot; for two-slot builds the Crucial Pro CP2K32G56C46U5 64GB (2x32GB) kit covers the dual-channel version of this same part.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

Single-slot 32GB desktop upgrades needing certified XMP/EXPO support
Buyers comparing retail listings of the same Crucial Pro part under different suffixes

Not for

Builds with two free slots better served by a matched kit
RGB-themed builds

Specifications

What these specs mean

Speed Score

6.0/10

How fast this kit is among DDR5 kits, rated from its speed and latency.

Identity

Peak Bandwidth	44.8 GB/s
Brand	Crucial
Part Number	CP32G56C46U5.C16D
Series	Crucial Pro

Memory

DDR Generation	DDR5
Capacity	32 GB
Speed	5600 MT/s
CAS Latency	46
Module Count	1
Voltage	1.1 V

Physical

RGB Lighting	No

Module and platform

RAM Segment	Desktop DDR5
Form Factor	Desktop DIMM

Capacity

Capacity Per Module	32 GB

Speed and timings

True Latency	16.4 ns

Overclocking profile

XMP Support	Yes
XMP Version	XMP 3.0
EXPO Support	Yes

Silicon

Memory IC	Micron
ECC	No

Physical and lighting

Colour	Black

Commercial

Warranty	Limited Lifetime

FAQs

What are the key specifications of the Crucial CP32G56C46U5.C16D 32GB?

Key specs for the Crucial CP32G56C46U5.C16D 32GB: Capacity Per Module 32 GB, Capacity 32 GB, Speed 5600 MT/s, OC Profile XMP 3.0 + EXPO, Voltage 1.1 V, DDR Generation DDR5.

Will the Crucial CP32G56C46U5.C16D 32GB work with my current setup?

The Crucial CP32G56C46U5.C16D 32GB lists DDR Generation is DDR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits. Our upgrade checker at /upgrade can confirm compatibility for common combinations.

Who is the Crucial CP32G56C46U5.C16D 32GB best suited to?

Best suited to: Single-slot 32GB desktop upgrades needing certified XMP/EXPO support; Buyers comparing retail listings of the same Crucial Pro part under different suffixes.

What are the drawbacks of the Crucial CP32G56C46U5.C16D 32GB?

Not the best fit for: Builds with two free slots better served by a matched kit; RGB-themed builds.