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HP 128GB 2400MHz DDR4 PC4-19200 ECC Registered CL17 288-Pin Load Reduced DIMM 1.2V Octal Rank Memory Module - 809209-B21

HP 128GB 2400MHz DDR4 PC4-19200 ECC Registered CL17 288-Pin Load Reduced DIMM 1.2V Octal Rank Memory Module - 809209-B21

Part Number: 809209-B21
Manufacturer: HP

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Weight: 0.1 lbs

AvailabilityIn stock

Regular price $1,846.88
Regular price Sale price $1,846.88
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What Is the HP 809209-B21 128GB DDR4-2400 LRDIMM?

The HP 809209-B21 is a genuine 128GB DDR4 server memory module. It runs at 2400MHz on the PC4-19200 standard. It uses ECC Load Reduced design. The layout is octal-rank. It uses a 288-pin form factor at 1.2V.

Octal-rank LRDIMM packs eight ranks onto one module. It uses a data buffer chip. This was one of the earliest ways to reach 128GB per DDR4 module. Newer 3DS die-stacking came later. The module carries a CL17 latency rating.

HP 809209-B21 Specifications

  • Brand: HP
  • Part Number: 809209-B21
  • Capacity: 128GB
  • Speed: 2400MHz (PC4-19200)
  • Memory Type: DDR4 ECC Load Reduced (LRDIMM)
  • CAS Latency: CL17
  • Rank and Width: Octal-Rank
  • Voltage: 1.2V
  • Pin Count: 288
  • Form Factor: Standard Height LRDIMM
  • Condition: Refurbished, tested, and verified functional

Which Servers Use This Module?

This module fits HP ProLiant Gen9 servers built for high-density DDR4-2400 memory. Many DL380 Gen9 and DL560 Gen9 models support octal-rank LRDIMM. Always check your exact model's memory list first. Octal-rank support varies by platform.

Is This Module New or Refurbished?

This module is refurbished, not new. Each one is cleaned and tested. This confirms it works before it gets listed. The chips are HP-qualified, not a generic substitute. A 30-day warranty covers every order.

Best Uses for This Memory Module

This module suits a Gen9 server with top density needs on an early DDR4 platform. Large in-memory databases benefit most. It also replaces a failed octal-rank module with a matched, genuine HP part.

Common Questions

Why does this module need octal-rank instead of quad-rank like newer 128GB parts?

Early DDR4 die densities were lower. Reaching 128GB required more ranks. Later generations reached the same capacity with fewer, denser ranks.

Does Gen9 support all 128GB LRDIMM options equally?

No. Check your exact model and CPU generation. 128GB LRDIMM support varies even within the Gen9 family.

Frequently Asked Questions

Why do I see an incorrect image for this item?

Product images are meant for illustrative purposes alone, and you may not always see the original image.

What do you mean by term Refurbished?

Refurbished means a used computer part or device that has been cleaned, checked, and repaired to make sure it works properly again. Unlike regular second-hand items, refurbished products go through testing and fixing so they can perform like new.

How many days does it take to ship goods to customers?

All orders are processed within 1-2 business days. Orders placed on weekends or public holidays will be processed on the next business day. For more info visit shipping policy.

What is your return policy?

Our Return Policy comprises a 30-day warranty for Refurbished products. There will be a restocking fee applied when you return non-defective returns. For further details, kindly take a look at our Return Policy page.

Do you deliver my ordered items in their original retail box?

For Brand New items, you will receive them in their original retail box. For Refurbished items, you will receive them in a Brown Box or Bulk Packaging.

Do your printers come with ink cartridges?

Refurbished printers do not come with ink cartridges or toners.