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Two gray DDR5 memory modules with low-profile heat spreaders

Corsair

Corsair CMK32GX5M2B6400Z32 32GB (2×16GB) DDR5 6400 CL32 desktop RAM

SKU CH-744P-9G8KY MPN CMK32GX5M2B6400Z32

Dual-channel 32GB kit of two 16GB DDR5 modules at 6400 MT/s with CL32 timing and 1.40V operation

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • CAS latencyCL32
  • Memory timings32-40-40-40-84
  • Rated voltage1.4 V
  • Buffer typeUnbuffered / Unregistered
  • 32 GB dual-channel kit equips modern CPUs with high bandwidth
  • DDR5 6400 speed feeds data to many-core processors for responsive workloads
  • CL32 32-40-40-40-84 timings keep latency low at high frequency
  • 40 V operation with onboard regulation enables stable XMP 3.0 and EXPO profiles
  • Gray aluminum heat spreader dissipates heat without adding LED lighting

Vengeance DDR5 6400 dual-channel kit

This Vengeance DDR5 6400 kit delivers 32 GB across two 16 GB unbuffered modules. It targets enthusiasts building on Intel 600- or 700-series platforms and AMD 570- or 670-series platforms who need high bandwidth for gaming or content creation. The rated 1.40 V operation and CL32-40-40-40-84 timings are set for stable high-frequency performance.

Installation via Intel XMP 3.0 and AMD EXPO

Installation follows the standard 288-pin DIMM procedure and the kit includes gray heat spreaders that clear most CPU coolers. The onboard voltage regulation allows finer tuning through Corsair iCUE software, while the dual XMP 3.0 and EXPO profiles let the firmware configure speed and timings automatically. Common issues arise only when the motherboard BIOS lacks the latest microcode for 6400 MT/s operation.

32 GB capacity for modern workloads

The 32 GB total handles current AAA titles, heavy multitasking and moderate video editing without paging. Workloads that exceed this capacity — large-scale 3D rendering, virtual-machine clusters or extensive RAM disks — will require additional kits or higher-density modules. Dual-channel topology maximises throughput on supported consumer platforms.

How it compares

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

Price $489.99
Pricier than about 85% of the 3,647 comparable items (median $90.99).
Total capacity 32 GB (2 × 16 GB)
Higher than about 70% of the 3,251 comparable items (median 16 GB).
Price per GB $15.31 per GB
Pricier than about 88% 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 nameCORSAIR
Product lineVengeance
Model nameCMK32GX5M2B6400Z32
Total capacity32 GB (2 × 16 GB)
Product type288-Pin PC RAM
Product colorGray
Performance
Rated speedDDR5 6400 (PC5 51200)
Memory
CAS latencyCL32
Memory timings32-40-40-40-84
ECC supportNo
Buffer typeUnbuffered / Unregistered
Kit configurationDual Channel Kit
Memory profilesIntel XMP 3.0 and AMD EXPO
Heat spreaderYes
Power
Rated voltage1.4 V
Size & build
Shipping weight0.09 kg
Package size152 × 91 × 13 mm
Compatibility
Recommended forAMD & Intel Compatible / AMD Ryzen Compatible / AMD X570 / AMD X670 / High Performance or Gaming Memory / Intel 600 Series / Intel 700 Series / Intel B660 / Intel B670 / Intel B760 / Intel Compatible / Intel Z690 / Intel Z790
More details
LED lightingNone

Questions about this item

Will this kit run at 6400 MT/s on a Ryzen system without manual tuning?

The kit supports AMD EXPO, so a compatible Ryzen motherboard can load the 6400 MT/s profile automatically in BIOS.

Does the motherboard need to supply 1.40 V for the rated speed?

Yes, the modules are specified at 1.40 V, and the board must provide that voltage for stable operation at 6400 MT/s.

Can I use a single 16 GB module if I only have one free slot?

The kit is sold as a matched 2 × 16 GB pair; using one module alone will work but you lose dual-channel bandwidth.

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