Corsair Vengeance RGB PRO 16GB (2x 8GB) CL19 DDR4-4000 PC4-32000 1.2V 288-pin UDIMM Gaming RAM Kit

Corsair Vengeance RGB PRO 16GB (2x 8GB) CL19 DDR4-4000 PC4-32000 1.2V 288-pin UDIMM Gaming RAM Kit

SKU: CMW16GX4M2K4000C19

  • $717.20
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Product Overview

This 16GB (2x 8GB) Vengeance RGB PRO Series DDR4 4000 MT/s RAM kit from Corsair is for use in DDR4 compatible systems and operates at 4000 MT/s with an overall transfer rate of PC4-32000.

Built to provide Gamers and Enthusiasts alike with excellent overall system performance, this RAM kit also operates at a standard voltage of 1.2V with a CAS Latency of CL19, and is designed to allow you to run more applications simultaneously, switch between them faster, and provide a smoother computing experience.

Technical Specifications
Part No. CMW16GX4M2K4000C19
Capacity 16GB (2x 8GB)
Brand Corsair
Speed DDR4-4000 - 4000MT/s - PC4-32000
Voltage 1.2V
Technology DDR4
Series Vengeance RGB PRO
Error Correction Non-ECC
Signal Processing Unbuffered
Form Factor 288-pin UDIMM
CAS Latency CL19
Pieces in Kit 2


You can verify the compatibility of this RAM kit in a number of ways:

  • Use the RamCity Finder to see all guaranteed compatible RAM upgrades for your brand and model system or motherboard
  • Search online to see if this product is on the QVL (Qualified Vendor List) for your system or motherboard
  • Contact one of our Upgrade Evangelists for an expert opinion

Why is the speed of this RAM kit shown as 4000 MT/s instead of 4000 Mhz?

When it comes to measuring DDR RAM speed, MT/s and MHz are used interchangeably, which is not actually correct.

DDR stands for double data rate which means data is transfers on both the rising and falling edges of the clock signal. Meaning that the transfer rate is roughly twice the speed of the I/O bus clock. This RAM kit runs at 2000MHz per second, but the effective rate is 4000 megatransfers per second (MT/s) because there are 2000 million rising edges per second and 2000 million falling edges per second of a clock signal running at 2000 MHz.