Crucial

Crucial CT8G56C46U5.C4D 8GB DDR5-5600

Summary:: 8GB DDR5 Desktop RAM Module

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Manufacturer: Crucial Last updated: 2026-09-14

Crucial CT8G56C46U5.C4D 8GB DDR5-5600 Review

The Crucial CT8G56C46U5.C4D is an 8GB DDR5-5600 desktop module from Crucial's bare RAM line, no XMP, no heat spreader, just a single stick at a common DDR5 speed.

We'd use this to add a second 8GB stick to a system that already has one, or as the cheapest way into a DDR5 board when 8GB genuinely covers your workload.

Performance

5600MT/s CL46 is a step up in bandwidth from the 4800MT/s baseline while staying at plain JEDEC timings (true latency ~16.4ns, no XMP). It's a common speed bin across Crucial's whole CT-series desktop lineup.

Comparison to Alternatives

Crucial's own CT8G48C40U5.M4A1 covers the same 8GB capacity at a slightly slower 4800MT/s for a bit less money; step up to this CT8G56C46U5.C4D for the faster 5600MT/s bin. If you need certified XMP/EXPO at this capacity and speed, Crucial's Pro line (e.g. CP16G56C46U5 at double the capacity) adds that certification for a premium.

Specifications

Identity

Brand	Crucial
Part Number	CT8G56C46U5.C4D
Series	Crucial RAM

Memory

DDR Generation	DDR5
Capacity	8 GB
Speed	5600 MT/s
CAS Latency	46
Module Count	1
Voltage	1.1 V

Physical

Form Factor	Desktop DIMM
RGB Lighting	No

Module and platform

RAM Segment	Desktop DDR5

Capacity

Capacity Per Module	8 GB

Speed and timings

True Latency	16.4 ns

Silicon

Memory IC	Micron
ECC	No

Physical and lighting

Colour	Green PCB

Commercial

Warranty	Limited Lifetime

Model Number	CT8G56C46U5.C4D
OC Profile	JEDEC Standard (No XMP)
Spec Score	3.2

Expert Review

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

Best for

Adding a second 8GB stick to an existing single-module PC
Budget office or light-use desktop builds

Not for

Gaming or content-creation builds (too little capacity)
Buyers wanting XMP-tuned speeds

FAQs

What are the key specifications of the Crucial CT8G56C46U5.C4D 8GB DDR5-5600?

The Crucial CT8G56C46U5.C4D 8GB DDR5-5600 is a memory kit from Crucial. Key specs: DDR Generation DDR5, Capacity 8GB, Speed 5600MT/s, CAS Latency 46, Module Count 1.

Will the Crucial CT8G56C46U5.C4D 8GB DDR5-5600 work with my current setup?

The Crucial CT8G56C46U5.C4D 8GB DDR5-5600 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 CT8G56C46U5.C4D 8GB DDR5-5600 best suited to?

It suits adding a second 8gb stick to an existing single-module pc, budget office or light-use desktop builds.

What are the drawbacks of the Crucial CT8G56C46U5.C4D 8GB DDR5-5600?

It is a poor fit for gaming or content-creation builds (too little capacity), buyers wanting xmp-tuned speeds.