HPE P07646-B21 32GB Memory PC4-25600
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HPE P07646-B21 32GB Memory 3200Mhz DDR4 SDRAM 288-Pin New

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Part Number#: P07646-B21
List Price was: $574.42
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Short Description:
P07646-B21 32 Gigabytes(GB) (1X32GB) 2rx4 Double Data Rate 4 (DDR4) SDRAM 3200 Megahertz (MHz) Pc4-25600 Dual Rank X4 Cl22 288-pin Error correction code (ECC) Registered Rdimm Smart Memory Module for Server | Made by HPE | Brand New 3 Years Warranty
Brand Warranty:
3 Years Warranty
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days
Product overview for the HPE P07646-B21

In the dynamic landscape of server technology, choosing the right memory module is crucial for ensuring optimal performance and reliability. The HPE P07646-B21 32GB DDR4 3200MHz SDRAM emerges as a noteworthy contender, designed to meet the demanding requirements of modern servers. This comprehensive guide will delve into the various aspects of this memory module, providing an in-depth understanding of its specifications, features, and benefits.

Understanding HPE P07646-B21 32GB DDR4DDR4 Technology Overview

Before delving into the specifics of the HPE P07646-B21, it's essential to grasp the fundamentals of DDR4 technology. DDR4, or Double Data Rate 4, is the fourth generation of DDR Synchronous Dynamic Random-Access Memory (SDRAM). This technology represents a significant leap forward in terms of performance, energy efficiency, and capacity compared to its predecessor, DDR3.

Key Features of DDR4
  • Increased Data Transfer Rates: DDR4 offers higher data transfer rates, with the HPE P07646-B21 specifically boasting a speed of 3200MHz. This elevated speed enhances the overall responsiveness and efficiency of servers.
  • Improved Module Density: DDR4 allows for higher module densities, enabling the creation of memory modules with larger capacities like the 32GB offered by the HPE P07646-B21.
  • Lower Power Consumption: DDR4 operates at a lower voltage, resulting in reduced power consumption compared to DDR3. This contributes to improved energy efficiency and thermal management in server environments.
  • Enhanced Error Detection and Correction: DDR4 incorporates advanced error detection and correction capabilities, ensuring data integrity and system stability.
HPE P07646-B21 32GB DDR4 Specifications

Now, let's dive into the specific details of the HPE P07646-B21 32GB DDR4 module.


The HPE P07646-B21 is a 32GB DDR4 module, making it suitable for memory-intensive applications and workloads in server environments.

Memory Type

This module is classified as 2Rx4, indicating the organization of its memory banks. In a 2Rx4 configuration, each memory module has two ranks of memory on each side, contributing to its overall performance.

Memory Speed

The DDR4 3200MHz speed of the HPE P07646-B21 is a standout feature, offering rapid data transfer rates to meet the demands of modern server applications.

CAS Latency (CL) and Rank

With a CAS Latency of 22 (CL22) and dual rank configuration, this memory module strikes a balance between latency and performance. The dual rank design ensures efficient data access and retrieval.

Form Factor

The HPE P07646-B21 adopts the 288-pin ECC Registered RDIMM form factor, ensuring compatibility with a wide range of server systems.

ECC (Error-Correcting Code) Support

ECC support is crucial in server environments where data integrity is paramount. The HPE P07646-B21 is equipped with ECC functionality, providing error detection and correction to enhance system reliability.

Smart Memory Module

The inclusion of "Smart Memory Module" technology signifies intelligent features designed to optimize performance, monitor health, and facilitate proactive management of the memory subsystem.

Benefits of HPE P07646-B21 32GB DDR4Performance Boost

The DDR4 3200MHz speed, dual rank configuration, and optimized CAS latency contribute to a significant performance boost, making the HPE P07646-B21 ideal for data-intensive tasks and applications.


With a 32GB capacity, the HPE P07646-B21 provides ample room for scalability. Servers can be equipped with multiple modules to meet the growing demands of evolving workloads.

Reliability and Data Integrity

The ECC support and smart memory technology enhance the module's reliability by detecting and correcting errors, ensuring data integrity in critical server applications.


The 288-pin ECC Registered RDIMM form factor ensures compatibility with a wide range of server systems, making the HPE P07646-B21 a versatile choice for various server configurations.

Use Cases

The HPE P07646-B21 32GB DDR4 module is well-suited for a variety of server use cases, including:


In virtualized environments where multiple virtual machines run concurrently, the high capacity and performance of the HPE P07646-B21 contribute to smooth and efficient operations.

Database Management

For database servers handling complex queries and large datasets, the module's high-speed data transfer and ECC support ensure optimal performance and data integrity.

High-Performance Computing (HPC)

In HPC environments tackling computationally intensive tasks, the HPE P07646-B21 excels with its fast data transfer rates and large capacity.

Enterprise Applications

Mission-critical enterprise applications benefit from the reliability and scalability provided by the HPE P07646-B21, ensuring seamless operation and responsiveness.

General Information about the HPE P07646-B21
  • Manufacturer: HPE
  • Model Number or SKU# P07646-B21
  • Type: Memory (RAM)
  • RAM Type: Pc4-25600
  • Product Name: HPE Smart Memory 32GB-DDR4 SDRAM Memory Module
Technical Information for the 32GB DDR4 RAM
  • Storage Capacity: 32GB
  • Memory Type: DDR4 SDRAM - Dimm 288-Pin
  • Number Of Modules: 1 X 32GB
  • Memory Speed: 3200MHZ (PC4-25600)
  • Features: Dual Rank X4, Registered
  • Error Checking: ECC
  • Voltage: 1.2 V
  • Latency Timings: Cl22
  • Upgrade Type: System Specific
  • Device Supported: Server
Compatibility of HPE PC4-25600 Memory Module
  • HPE Nimble Storage dHCI Medium Solution with HPE ProLiant DL325 Gen10 Plus
  • HPE ProLiant DL Series:
    • DL325 Gen10 Plus
    • DL325 Gen10 Plus All-NVMe Flash Node for Qumulo
    • DL325 Gen10 Plus All-NVMe Flash Node for Software Defined Storage
    • DL325 Gen10 Plus for Weka Base Tracking
    • DL325 Gen10 Plus for Weka Expansion Tracking
    • DL325 Gen10 Plus V2
    • DL325 Gen10 Plus V2 Base
    • DL325 Gen10 Plus V2 for Weka Base Tracking
    • DL325 Gen10 Plus V2 Performance
    • DL345 Gen10 Plus
    • DL345 Gen10 Plus Base
    • DL345 Gen10 Plus Entry
    • DL365 Gen10 Plus
    • DL385 Gen10 Plus
    • DL385 Gen10 Plus Entry
    • DL385 Gen10 Plus V2 Base
    • DX385 Gen10 Plus
    • DX385 Gen10 Plus Network Choice
  • HPE SimpliVity 325 Gen10 Plus V2 Node

Finally, the HPE P07646-B21 32GB DDR4 3200MHz SDRAM emerges as a formidable solution for servers, combining high performance, reliability, and scalability. Its DDR4 technology, coupled with intelligent features like ECC support and smart memory modules, positions it as a versatile choice for various server use cases. As server technology continues to evolve, memory modules like the HPE P07646-B21 play a crucial role in unlocking the full potential of modern computing environments. When selecting memory solutions for servers, understanding the specifications and features is paramount to making informed decisions that align with the specific requirements of your infrastructure.

Brand Warranty:
3 Years Warranty
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

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Individual product warranty mentioned on each item product description page/detail page.

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