Is this memory module unbuffered or registered?

The memory module is unbuffered/unregistered.

I am looking for a memory with a heat spreader. Does this model have one?

Yes, this model includes a heat spreader.

How does the speed of this memory module impact my gaming experience?

The speed of this memory module, up to 6400MHz, enhances gaming performance by providing lower latency and higher frame rates, which is especially beneficial for memory-intensive AAA games.

Can this memory module be used with my 12th Gen Intel Core processor?

Yes, this memory module is compatible with 12th Gen Intel Core processors.

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Main image of Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C38U5B

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Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C38U5B

(63)(75) Write a Review

Capacity: 32GB (2 x 16GB)

32GB (2 x 16GB)
64GB (2 x 32GB)

Speed: DDR5 6400 (PC5 51200)

DDR5 6400 (PC5 51200)
DDR5 6000 (PC5 48000)

CAS Latency|Color: CL38|Black

CL36|Black
CL36|White
CL38|Black
CL38|White
CL40|Black
CL40|White

DDR5 6400 (PC5 51200)
CAS Latency CL38
Voltage 1.35V

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

Specs

Reviews (63)

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Model
Brand	Crucial
Series	Pro Overclocking
Model	CP2K16G64C38U5B
Part Number	CP2K16G64C38U5B

Details
Capacity	32GB (2 x 16GB)
Speed	DDR5 6400 (PC5 51200)
CAS Latency	CL38
Voltage	1.35V
ECC	No
Buffered/Registered	Unbuffered / Unregistered
Multi-channel Kit	Dual Channel Kit
BIOS/Performance Profile	Intel XMP 3.0 / AMD EXPO
Color	Black
Heat Spreader	Yes
Features	* UNSTOPPABLE SPEEED UP TO 6,400MHz: Every millisecond gained in fast-paced gameplay counts, so take advantage of lower latency for higher frame rates per second for a smoother gaming experience that’s ideal for memory-intensive AAA games * COOL LOOK AND FEEL: Our DDR5 Pro OC Gaming Memory features an aluminum heat spreader in white with a clean, origami-based design that is both cool to the touch and an aesthetic win for any rig. * FLEXIBLE COMPATIBILITY: Experience flexibility with memory that supports next-gen multi-core CPUs and stable overclocking with Intel® XMP 3.0 and AMD EXPO™ (Compatibility conditions apply. Verify compatibility with motherboard manufacturer.) * ENGINEERED WITH QUALITY AND RELIABILITY: With more than 45 years of memory expertise, Micron delivers cutting-edge engineering and superior component and module-level testing for all Crucial DRAM products.
Recommend Use	Compatible with 12th Gen Intel® Core™ or AMD RyzenTM 7000 Series Desktop CPUs and above
LED Color	None

Additional Information
First Listed on Newegg	July 17, 2025

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Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C38U5B

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Item#: 9SIAM37KJD4441

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Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400 (PC5 51200) Desktop Memory Model CP2K16G64C38U5B

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Customer Reviews of the Crucial CP2K16G64C38U5B

Warranty & Returns

Warranty, Returns, And Additional Information

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Manufacturer Contact Info