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Four black DDR4 modules with low-profile aluminum heatspreaders

Corsair

Corsair CMK64GX4M4B2800C14 Vengeance LPX 64GB (4×16GB) DDR4 2800 CL14 desktop RAM

SKU CH-6ASS-WXJH6 MPN CMK64GX4M4B2800C14

64 GB desktop DDR4 kit running at 2800 MT/s with CL14 timings and 1.35 V

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2800 (PC4 22400)
  • CAS latencyCL14
  • Memory timings14-16-16-36
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • High capacity 64GB kit handles heavy workloads
  • Low CL14 latency speeds up data access
  • 35V operation reduces power draw and heat
  • Pure aluminium heatspreader keeps modules cool under load
  • XMP 2.0 profile enables one-click overclocking setup

64 GB DDR4 kit for X99 builds

This Vengeance LPX kit provides 64 GB of DDR4 memory across four 16 GB modules. It is designed for desktop systems based on Intel X99 motherboards that support high-performance overclocking. Each module uses an eight-layer PCB and a pure aluminum heatspreader to manage heat during sustained loads.

DDR4 2800 CL14 at 1.35 V with XMP 2.0

The modules run at DDR4 2800 (PC4 22400) with timings of 14-16-16-36 and a CAS latency of 14 at 1.35 V. XMP 2.0 support allows automatic configuration on compatible X99 boards without manual tuning. The kit is unbuffered and non-ECC, matching standard consumer desktop requirements.

Upgrade from DDR3 or lower-capacity DDR4

This kit replaces DDR3 memory on X99 platforms, delivering higher frequencies, greater bandwidth and lower power consumption. The jump is worth it when moving to a quad-channel 64 GB configuration for workloads that benefit from capacity and speed. Buyers who need ECC or registered modules should look elsewhere.

How it compares

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

Price $456.99
Pricier than about 83% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $7.14 per GB
Typical for this category: the median of 3,251 items is $6.75 per GB.

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Specifications

Product
Brand nameCORSAIR
Product lineVengeance LPX
Model nameCMK64GX4M4B2800C14
Total capacity64 GB (4 × 16 GB)
Product colorBlack
Performance
Rated speedDDR4 2800 (PC4 22400)
Memory
CAS latencyCL14
Memory timings14-16-16-36
ECC supportNo
Buffer typeUnbuffered
Heat spreaderYes
Power
Rated voltage1.35 V
Size & build
Shipping weight0.20 kg
Package size155 × 90 × 22 mm

Questions about this item

Should I pick the 64GB kit with four 16GB modules or a different capacity for my build?

This kit provides 64GB total across four 16GB modules running at DDR4 2800 with CL14 timing, suited for X99 platforms needing high capacity and low latency.

What does the DDR4 2800 CL14 rating deliver in an actual system?

At DDR4 2800 the modules transfer data at the PC4 22400 rate with 14-16-16-36 timings at 1.35V, giving strong bandwidth and low latency for overclocked X99 workloads.

Does the XMP 2.0 support set the speed automatically or is manual tuning required?

XMP 2.0 loads the rated DDR4 2800 CL14 profile automatically on compatible X99 motherboards, while the eight-layer PCB and aluminum heatspreader provide headroom for further manual tuning.

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