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Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory — main product image
Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory
Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory
Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory
Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory
Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory
Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory
Corsair

Corsair CMK64GX4M2G4000C18 64GB Vengeance LPX DDR4 4000MHz Memory

Corsair's Vengeance LPX 64GB DDR4-4000MHz kit delivers high-speed, high-capacity memory for demanding workstations and enthusiast builds.

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Overview

The Corsair Vengeance LPX CMK64GX4M2G4000C18 is a 64GB DDR4 memory kit consisting of two 32GB modules running at 4000MHz with a CAS latency of C18. Designed for enthusiast and professional systems, this kit provides the bandwidth and capacity needed for memory-intensive tasks such as video production, 3D rendering, virtual machine hosting, and large-scale data processing. The modules use carefully screened ICs and are built with a solid aluminum heat spreader that efficiently dissipates heat during extended workloads.

Corsair has optimized this kit for Intel Z490 motherboards, and it supports XMP 2.0 profiles for easy one-click configuration to reach its rated 4000MHz speed. The low-profile form factor, standing at just 34mm tall, ensures compatibility with oversized air coolers and compact chassis where DIMM clearance can be an issue. Available in black to complement most builds, the Vengeance LPX line has earned a reputation for reliability and broad compatibility, making this 64GB kit a practical choice for users who refuse to compromise on either capacity or speed.

Key Features

Each VENGEANCE LPX module is built with a pure aluminum heatspreader for faster heat dissipation and cooler operation;and the custom performance PCB helps manage heat and provides superior overclocking headroom.

Available in multiple colors to match your motherboard, yourcomponents, or just your style

VENGEANCE LPX is optimized and compatibility tested for the latest Intel DDR4 motherboards and offers higher frequencies,greater bandwidth, and lower power consumption.

The VENGEANCE LPX module height is carefully designed to fit smaller spaces.

Specifications

Brand
Corsair
Model
CMK64GX4M2G4000C18
Capacity
64GB (2 x 32GB)
Memory Type
DDR4
Speed
4000MHz (PC4-32000)
CAS Latency
C18
Voltage
1.35V
Optimized For
Intel Z490
Color
Black

Pros & Cons

👍 Pros

  • 64GB total capacity across two 32GB modules handles memory-intensive workloads like video editing and large datasets
  • 4000MHz speed provides fast data transfer for high-performance applications
  • Low-profile heat spreader design fits under tall tower CPU coolers without clearance issues
  • XMP 2.0 support enables one-click overclocking to rated speeds in BIOS
  • Aluminum heat spreader aids thermal dissipation during sustained workloads

👎 Cons

  • C18 latency at 4000MHz is adequate but not the tightest available at this frequency
  • Optimized for Intel Z490 platform, so AMD or other Intel chipsets may require manual tuning
  • 1.35V operating voltage is higher than standard DDR4 JEDEC specs of 1.2V
  • Two-module kit occupies both DIMM slots on dual-slot motherboards, leaving no room for future expansion
  • High-capacity 4000MHz kits carry a premium price compared to lower-speed alternatives

Frequently Asked Questions

This kit is specifically optimized for Intel Z490 motherboards, though it may also work with other DDR4-compatible boards that support 4000MHz speeds via XMP profiles.
The CAS latency is C18, which is a reasonable latency rating for DDR4 memory running at 4000MHz speeds.
No, the kit supports Intel XMP 2.0 profiles, so you can enable the rated 4000MHz speed through a simple BIOS setting without manual overclocking.
Yes, the Vengeance LPX uses a low-profile design with a heat spreader height of just 34mm, making it compatible with most tower coolers and compact builds.
It operates at 1.35V, which is a standard voltage for high-performance DDR4 modules and within safe limits for daily use.

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