Technical Snapshot

The Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B is a high-performance DDR5 desktop memory kit 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 kit provides 64GB (2x32GB) 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 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B

Name: Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B
Brand: Crucial
SKU: CP2K32G64C40U5B

DDR5 · DIMM · 6,400 MT/s · CL40-40-40-80 · 64GB (2x32GB)

Speed 6,400 MT/s

Capacity 64GB (2x32GB)

Timings CL40-40-40-80

Profile XMP 3.0

MPNCP2K32G64C40U5B

EAN649528945709

CategoryMemory

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Memory Specifications

Memory TypeDDR5

Form FactorDIMM

Total Capacity64GB (2x32GB)

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	64GB (2x32GB)
Module Count	2
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	CP2K32G64C40U5B
EAN	649528945709
Warranty	Limited Lifetime
Variant	Black
Physical
Weight	0.098 kg
Package Dimensions	18.1 x 13.4 x 0.9 cm

Support

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Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B DatasheetPDF · Technical specifications

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Frequently Asked Questions

What motherboards are compatible with this memory?

The Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B 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.

Does this kit run in dual-channel mode?

Yes, the Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B includes 2 modules which enable dual-channel mode when installed in the correct DIMM slots (typically A2+B2 or slots 2+4). Dual-channel doubles memory bandwidth compared to single-channel configuration. Check your motherboard manual for optimal slot placement.

Does this memory have a heatspreader?

Yes, the Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B features a Aluminum heatspreader. The module height is 33.5 mm.

What warranty does this memory come with?

The Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B comes with a Limited Lifetime warranty from Crucial.

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Product: Crucial Pro OC Gaming DDR5 64GB (2x32GB) 6400MT/s DIMM CL40 XMP 3.0 — CP2K32G64C40U5B
MPN: CP2K32G64C40U5B
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