We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two white DDR5 memory modules with aluminum heat spreaders

Crucial

Crucial Pro Overclocking 64GB (2 x 32GB) DDR5 6400 CL40 desktop RAM CP2K32G64C40U5W

SKU CH-1K0G-H45GB MPN CP2K32G64C40U5W

64 GB dual-channel DDR5 kit running at 6400 MT/s with CL40 latency and white heat spreaders

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • CAS latencyCL40
  • Rated voltage1.35 V
  • Buffer typeUnbuffered / Unregistered
  • Kit configurationDual Channel Kit

Capacity 64GB (2 x 32GB)

Speed DDR5 6400 (PC5 51200)

CAS Latency · Color CL40 · White

  • 64 GB total capacity across two 32 GB modules
  • DDR5 6400 speed with PC5 51200 bandwidth rating
  • CL40 CAS latency for responsive performance
  • 35 V operating voltage for efficient power draw
  • Intel XMP 3.0 and AMD EXPO profiles for simple overclocking setup

64GB DDR5 6400 Dual-Channel Kit

This Crucial Pro Overclocking kit delivers 64GB of DDR5 memory across two 32GB modules. It runs at 6400 MT/s with a CAS latency of CL40 and operates at 1.35V. The white aluminium heat spreader helps manage thermals during sustained loads.

Intel XMP 3.0 and AMD EXPO Profiles

The modules support both Intel XMP 3.0 and AMD EXPO for one-click overclocking on compatible platforms. Builders who cannot enable these profiles or who need ECC or registered DIMMs should consider other kits. The dual-channel layout suits mainstream desktop boards with four slots.

DDR5 6400 CL40 at 1.35V

The decisive specification is the DDR5 6400 speed rated at CL40 latency with a 1.35V operating voltage. This combination determines whether the memory matches the motherboard's qualified-vendor list and the CPU's supported memory-controller limits.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $756.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $11.83 per GB
Pricier than about 75% of the 3,251 comparable items (median $6.75 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameCrucial
Product linePro Overclocking
Model nameCP2K32G64C40U5 W
Part numberCP2K32G64C40U5 W
Total capacity64 GB (2 × 32 GB)
Product colorWhite
Performance
Rated speedDDR5 6400 (PC5 51200)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered / Unregistered
Kit configurationDual Channel Kit
Memory profilesIntel XMP 3.0 and AMD EXPO
Heat spreaderYes
Power
Rated voltage1.35 V
Size & build
Shipping weight0.23 kg
Package size182 × 135 × 10 mm
Compatibility
Recommended forCompatible with 12th Gen Intel® Core™ or AMD RyzenTM 7000 Series Desktop CPUs and above
More details
LED lightingNone

Other versions of this model

5 more in the same range

More in Desktop RAM

Similar items