Technical Snapshot

The Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B is a high-performance DDR5 desktop memory module with XMP 3.0 overclocking support. Running at 6,400 MT/s with CL38-38-38-80 timings at 1.35V, it supports XMP 3.0 profiles for one-click speed optimization in compatible BIOS. The module provides 16GB of DDR5 memory with a Aluminum heatspreader design. Backed by a Limited Lifetime warranty, targeting enthusiast PC builders, gamers, and content creators requiring high-bandwidth memory.

Use Case: Gaming, content creation, desktop computing
Compatibility: DDR5-compatible desktop motherboard
Category: DDR5 DIMM — Crucial Crucial Pro OC Gaming

Crucial RAM

Crucial Crucial Pro OC Gaming

Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B

Name: Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B
Brand: Crucial
SKU: CP16G64C38U5B

DDR5 · DIMM · 6,400 MT/s · CL38-38-38-80 · 16GB

Speed 6,400 MT/s

Capacity 16GB

Timings CL38-38-38-80

Profile XMP 3.0

MPNCP16G64C38U5B

EAN649528944498

CategoryMemory

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Memory Specifications

Memory TypeDDR5

Form FactorDIMM

Total Capacity16GB

Speed6,400 MT/s

TimingsCL38-38-38-80

Voltage1.35V

XMP/EXPO ProfileXMP 3.0

HeatspreaderAluminum

Module Height33.5 mm

WarrantyLimited Lifetime

Full Specifications

Data sourced from Crucial product specifications

Memory
Product Line	Crucial Pro OC Gaming
Memory Type	DDR5
Form Factor	DIMM
Total Capacity	16GB
Module Count	1
Module Capacity	16GB
Speed	6,400 MT/s
Timings & Voltage
Timings	CL38-38-38-80
Voltage	1.35V
XMP/EXPO Profile	XMP 3.0
Design
Heatspreader	Aluminum
Color	Black
Module Height	33.5 mm
Product
Brand	Crucial
MPN	CP16G64C38U5B
EAN	649528944498
Warranty	Limited Lifetime
Variant	Black
Physical
Weight	0.082 kg
Package Dimensions	22.86 x 19.05 x 15.24 cm

Support

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Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B DatasheetPDF · Technical specifications

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Frequently Asked Questions

What motherboards are compatible with this memory?

The Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B requires a DDR5-compatible motherboard. This kit uses Intel XMP profiles, optimized for Intel LGA 1851 (Z890, B860) and LGA 1700 (Z790, B760) platforms. It is also physically compatible with AMD AM5 DDR5 boards. Enable XMP in BIOS to run at rated speed.

Do I need to enable XMP 3.0 in BIOS?

Yes. Out of the box, DDR5 memory runs at JEDEC default speed (typically 4800 MT/s). To achieve the rated 6,400 MT/s with CL38-38-38-80 timings, enable XMP 3.0 in your motherboard BIOS. This is a one-click setting in the memory overclocking section.

Can I add more memory later?

Yes, the Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B is a single 16GB module. You can add additional compatible DDR5 DIMM modules to populate empty slots. For best performance, use matched modules of the same speed and capacity to enable dual-channel mode.

Does this memory have a heatspreader?

Yes, the Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B features a Aluminum heatspreader. The module height is 33.5 mm.

What warranty does this memory come with?

The Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B comes with a Limited Lifetime warranty from Crucial.

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Product: Crucial Pro OC Gaming DDR5 16GB 6400MT/s DIMM CL38 XMP 3.0 — CP16G64C38U5B
MPN: CP16G64C38U5B
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