Technical Snapshot

The Crucial Pro OC Gaming DDR5 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B is a high-performance DDR5 desktop memory module with XMP 3.0 overclocking support. Running at 6,400 MT/s with CL40-40-40-80 timings at 1.35V, it supports XMP 3.0 profiles for one-click speed optimization in compatible BIOS. The module provides 32GB 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 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B

Name: Crucial Pro OC Gaming DDR5 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B
Brand: Crucial
SKU: CP32G64C40U5B

DDR5 · DIMM · 6,400 MT/s · CL40-40-40-80 · 32GB

Speed 6,400 MT/s

Capacity 32GB

Timings CL40-40-40-80

Profile XMP 3.0

MPNCP32G64C40U5B

EAN649528945426

CategoryMemory

Contact for Price

Comparing memory? Open Comparison Tool →

Memory Specifications

Memory TypeDDR5

Form FactorDIMM

Total Capacity32GB

Speed6,400 MT/s

TimingsCL40-40-40-80

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	32GB
Module Count	1
Module Capacity	32GB
Speed	6,400 MT/s
Timings & Voltage
Timings	CL40-40-40-80
Voltage	1.35V
XMP/EXPO Profile	XMP 3.0
Design
Heatspreader	Aluminum
Color	Black
Module Height	33.5 mm
Product
Brand	Crucial
MPN	CP32G64C40U5B
EAN	649528945426
Warranty	Limited Lifetime
Variant	Black
Physical
Weight	0.091 kg
Package Dimensions	14.0 x 8.0 x 1.0 cm (estimated)

Support

Crucial Memory Compatibility ToolCheck motherboard compatibility for this module

Crucial Support →

Crucial Pro OC Gaming DDR5 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B DatasheetPDF · Technical specifications

Crucial Support →

← Back to Memory Catalog

Frequently Asked Questions

What motherboards are compatible with this memory?

The Crucial Pro OC Gaming DDR5 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B 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 CL40-40-40-80 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 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B is a single 32GB 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 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B features a Aluminum heatspreader. The module height is 33.5 mm.

What warranty does this memory come with?

The Crucial Pro OC Gaming DDR5 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B comes with a Limited Lifetime warranty from Crucial.

JSON-LD Structured Data — Product + FAQ + Breadcrumb

Product: Crucial Pro OC Gaming DDR5 32GB 6400MT/s DIMM CL40 XMP 3.0 — CP32G64C40U5B
MPN: CP32G64C40U5B
Schemas: Product + BreadcrumbList + FAQPage
Properties: 13 additionalProperty entries
Related: 4 isRelatedTo links