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HP 202170-B21 1GB DDR SDRAM Memory Module
HP 202170-B21 1GB DDR SDRAM Memory Module
HP 202170-B21 1GB DDR SDRAM Memory Module
HP

HP 202170-B21 1GB DDR SDRAM Memory Module

HP 1GB DDR SDRAM ECC memory module provides reliable server memory expansion for HP ProLiant DL series.

$53.00*
✓ In Stock on Amazon.com
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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

The HP 202170-B21 is a 1GB DDR SDRAM memory module with ECC (Error-Correcting Code) functionality, engineered for use in HP ProLiant DL series servers. ECC memory is a standard requirement in server environments because it automatically detects and corrects single-bit memory errors, preventing data corruption and system crashes during sustained operation. As an HP-branded module carrying an official part number, it has been validated for compatibility with supported ProLiant systems, reducing the risk of memory-related issues that can arise from using third-party or generic modules.

This module addresses a specific need: maintaining or modestly upgrading legacy HP servers that use DDR SDRAM. While 1GB is a minimal amount of memory by today's standards, it can be meaningful on older platforms where memory slots are limited and the operating environment has constrained requirements. Organizations keeping older ProLiant DL servers in service for secondary roles, testing, or legacy application support will find this module useful for keeping those systems operational with genuine HP hardware.

Key Features

Continuous development and enhancement of high-performance software applications

Data protection

Uninterrupted performance

Specifications

Brand
HP
Part Number
202170-B21
Capacity
1GB
Type
DDR SDRAM
Error Correction
ECC (Error-Correcting Code)
Compatibility
HP ProLiant DL Series Servers

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Pros & Cons

👍 Pros

  • ECC error correction ensures data integrity during continuous server operation.
  • HP-branded module is tested for compatibility with ProLiant DL servers, reducing integration issues.
  • 1GB capacity provides a meaningful memory boost for older server platforms that support DDR SDRAM.
  • Supports uninterrupted performance in mission-critical server environments.

👎 Cons

  • 1GB DDR SDRAM is an outdated standard, incompatible with modern DDR3, DDR4, or DDR5 platforms.
  • Only compatible with a limited range of legacy HP ProLiant DL servers.
  • Capacity is very small relative to the demands of current server applications.
  • DDR SDRAM transfer speeds are significantly slower than current memory technologies.

Frequently Asked Questions

It is designed for HP ProLiant DL series servers. Check your server's documentation to confirm it accepts DDR SDRAM ECC modules in this capacity and form factor.
ECC stands for Error-Correcting Code. This memory module can detect and correct single-bit memory errors automatically, which is critical for maintaining data integrity in server environments.
Generally no. This is an ECC server memory module designed for HP ProLiant DL servers. Most consumer desktops do not support ECC memory, and the form factor may not be compatible.
The listing does not specify renewed or refurbished status. It is an HP-branded module with the part number 202170-B21.

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