Corsair CMT16GX4M2K4000C19W Dominator Platinum RGB 16GB DDR4 4000MHz White — main product image

Corsair CMT16GX4M2K4000C19W Dominator Platinum RGB 16GB DDR4 4000MHz White

Corsair

Corsair CMT16GX4M2K4000C19W Dominator Platinum RGB 16GB DDR4 4000MHz White

Name: Corsair CMT16GX4M2K4000C19W Dominator Platinum RGB 16GB DDR4 4000MHz White
Brand: Corsair
SKU: CMT16GX4M2K4000C19W

★★★★★4.7 (651 reviews)

16GB DDR4

Corsair Dominator Platinum RGB delivers blazing 4000MHz DDR4 speeds with stunning CAPELLIX lighting in a striking white design.

$119.99*

Check availability

*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Corsair Dominator Platinum RGB DDR4 4000MHz (CMT16GX4M2K4000C19W) is a flagship memory kit built for demanding enthusiasts and gamers who refuse to compromise on performance or aesthetics. This 16GB kit (2x8GB) features hand-screened performance ICs, meaning each chip has been individually tested and selected for its ability to run at high frequencies with tight timings. Running at 4000MHz with a CAS latency of C19 at 1.35V, this kit delivers exceptional bandwidth for gaming, content creation, and overclocking endeavors.

Beyond raw performance, the Dominator Platinum RGB stands out with its iconic design in a striking white finish. The patented DHX cooling technology uses a dual-path heat exchange system that draws heat away from memory ICs through both the aluminum heatspreader and the custom PCB, ensuring stable operation during sustained loads. The 12 ultra-bright CAPELLIX RGB LEDs per module offer vibrant, individually addressable lighting that can be fully customized through CORSAIR iCUE software. With Intel XMP 2.0 support for easy one-click overclocking and a limited lifetime warranty, this kit is engineered for builders who want premium quality in every component of their system.

Key Features

Hand Screened Performance IC's

DHX cooling

Customizable light bar

Performance and Compatibility

Corsair Link compatibility

Specifications

Brand

Corsair

Model

CMT16GX4M2K4000C19W

Memory Type

DDR4

Capacity

16GB (2x8GB)

Speed

4000MHz (PC4-32000)

CAS Latency

C19

Voltage

1.35V

Color

White

RGB Lighting

CAPELLIX RGB LEDs (iCUE compatible)

Cooling

CORSAIR DHX Cooling Technology

XMP Support

Intel XMP 2.0

Warranty

Limited Lifetime

Pros & Cons

👍 Pros

Hand-screened ICs deliver exceptional overclocking potential and reliability
CAPELLIX RGB LEDs provide vivid, customizable lighting with lower power consumption than traditional LEDs
DHX cooling technology effectively dissipates heat from both sides of the module
Premium white aesthetic enhances high-end build appearances
Limited lifetime warranty provides long-term coverage

👎 Cons

4000MHz C19 speed requires Intel XMP 2.0 support, limiting out-of-box AMD compatibility
16GB (2x8GB) capacity may feel restrictive for heavy multitasking or professional workloads
Premium pricing places it well above standard DDR4 kits of similar capacity
1.35V operating voltage is above DDR4 standard, indicating higher power draw than base-spec modules

Frequently Asked Questions

What is the CAS latency of this memory kit?

This kit runs at CAS Latency C19 at its rated 4000MHz speed, which provides a strong balance of frequency and timing for high-performance builds.

How do you control the RGB lighting on the Dominator Platinum RGB?

The CAPELLIX RGB LEDs are fully customizable through CORSAIR iCUE software, which lets you adjust colors, effects, and brightness, and sync lighting across other compatible Corsair peripherals.

Does this memory require XMP to reach 4000MHz?

Yes, you need to enable the Intel XMP 2.0 profile in your motherboard BIOS to run at the rated 4000MHz speed. Without XMP, the memory will default to a lower standard DDR4 speed.

What cooling does this kit use?

The Dominator Platinum RGB uses CORSAIR's proprietary DHX cooling technology, which draws heat away from the memory ICs through both the top and bottom of the module for improved thermal performance.

Is this kit compatible with AMD platforms?

This kit is optimized for Intel motherboards with XMP 2.0 support. While it may physically work in AMD systems, rated speeds and stability are not guaranteed on AMD platforms.