Crucial

Crucial CT4K32G4VFD424A 128GB DDR4-2400 ECC RDIMM Memory Kit

128GB DDR4

Unleash Maximum Memory Capacity Introducing the Crucial 128GB DDR4-2400 Memory Kit. This kit features four 32GB modules, providing massive memory capacity for demanding server applications. Designed for reliability and performance, it's the perfect upgrade for your data center or high-performance...

$2,877.77*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Unleash Maximum Memory Capacity

Introducing the Crucial 128GB DDR4-2400 Memory Kit. This kit features four 32GB modules, providing massive memory capacity for demanding server applications. Designed for reliability and performance, it's the perfect upgrade for your data center or high-performance computing environment.

Specifications:

  • Brand: Crucial
  • Model: CT4K32G4VFD424A
  • Capacity: 128GB (4 x 32GB)
  • Memory Type: DDR4
  • Speed: 2400 MHz (PC4-19200)
  • CAS Latency: CL=17
  • Rank: Dual Ranked
  • Module Type: RDIMM VLP (Registered ECC Very Low Profile)
  • Voltage: 1.2V
  • Error Correction: ECC (Error-Correcting Code)
  • Module Organization: x4 based

Key Features

Crucial 128GB (4 x 32GB) Memory Kit DDR4-2400

PC4-19200 CL=17 Dual Ranked x4 based

Registered ECC 1.2V RDIMM VLP

Crucial PN: CT4K32G4VFD424A

Specifications

Capacity
128GB (4 x 32GB)
Type
DDR4
Speed
2400 MHz (PC4-19200)
Error Correction
ECC
Form Factor
RDIMM VLP
CAS Latency
CL=17
Voltage
1.2V
Rank
Dual Ranked x4 based
Part Number
CT4K32G4VFD424A
Brand
Crucial

Pros & Cons

👍 Pros

  • This memory kit provides a substantial 128GB capacity, significantly boosting system performance for demanding applications.
  • Operates at a speed of DDR4-2400 (PC4-19200), ensuring efficient data transfer rates for various computing tasks.
  • Features Registered ECC (Error-Correcting Code) technology, which enhances data integrity and system stability crucial for servers and workstations.
  • Includes four 32GB modules, allowing for flexible configuration and potential upgrade paths within compatible systems.
  • The VLP (Very Low Profile) design of these RDIMMs enables installation in compact server chassis or systems with limited clearance.

👎 Cons

  • The DDR4-2400 speed may be slower than newer, higher-frequency DDR4 memory kits available on the market.
  • Registered ECC memory is generally more expensive than unbuffered non-ECC memory, reflecting a higher cost per gigabyte.
  • This memory is specifically Registered ECC (RDIMM) and is not compatible with standard desktop motherboards that typically require unbuffered non-ECC memory.
  • The VLP (Very Low Profile) design, while beneficial for compact systems, does not inherently improve performance.
  • The specific CL=17 CAS latency, while standard for this speed, is not the lowest available, potentially impacting some ultra-low latency sensitive applications.

Frequently Asked Questions

This Crucial memory kit provides a total capacity of 128GB, distributed across four 32GB modules.
No, this is Registered ECC (RDIMM) memory, which is typically used in servers and workstations and is not compatible with most standard desktop motherboards that require unbuffered non-ECC memory.
The memory operates at a speed of DDR4-2400, also known as PC4-19200, providing solid performance for compatible systems.
"ECC" stands for Error-Correcting Code, which is a feature that detects and corrects common kinds of internal data corruption, enhancing system stability and data integrity, particularly important for servers.
These Crucial RDIMM memory modules operate at a low voltage of 1.2V, contributing to energy efficiency in compatible systems.