• Green circuit board memory stick with eight black chips and gold edge connector hpe p73446-b21 256gb ddr5-6400 registered dimm
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HPE

HPE P73446-B21 | 256GB DDR5-6400 Quad Rank x4 EC8 Registered 3DS Smart Memory DIMM

HPE P73446-B21 | 256GB DDR5-6400 Quad Rank x4 EC8 Registered 3DS Smart Memory DIMM

P73446-B21

Stock Status: Enquire

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Description

The HPE P73446-B21 is a 256GB DDR5 Smart Memory DIMM engineered for HPE Gen11 server platforms, delivering 51.2 GB/s peak bandwidth at DDR5-6400 MT/s to accelerate enterprise workloads including HPC, virtualisation, big data analytics, and in-memory databases. Its Quad Rank x4, 3D Stacked (3DS) Registered design maximises memory density per slot, while On-Die ECC (EC8) ensures mission-critical data integrity with single-bit error correction.

As an HPE DDR5 Smart Memory module, P73446-B21 is rigorously qualified and tested for HPE Gen11 servers — including ProLiant DL360, DL380, DL385, DL365, DL345, and DL325 Gen11 — unlocking platform-specific performance features unavailable with third-party DIMMs. Operating at a power-efficient 1.1V, it helps reduce data centre energy consumption without compromising throughput. In stock and ready to ship from iptrading.com.au — order now for fast dispatch.

Features

- HPE DDR5 Smart Memory — unlocks exclusive performance capabilities on HPE Gen11 server platforms
- Quad Rank x4, 3D Stacked (3DS) Registered architecture delivers maximum memory density per DIMM slot
- On-Die ECC (EC8) provides enhanced data integrity and single-bit error correction for mission-critical reliability
- 51.2 GB/s peak bandwidth accelerates HPC, virtualisation, big data analytics, and in-memory database workloads
- Rigorously HPE-qualified and tested to ensure enterprise-grade compatibility and stability
- Power-efficient 1.1V operation reduces data centre energy consumption
- Supports server virtualisation, cloud computing, and large-scale database applications
- Drop-in compatible with HPE Gen11 ProLiant server ecosystem

Warranty

Hewlett Packard Enterprise (HPE) offers a standard limited hardware warranty on its products, with coverage periods varying by product line. For instance, HPE ProLiant servers typically come with a 1 to 3-year limited warranty, while other products may have different durations.
Extended Warranty Options via IP Trading:
IP Trading offers tailored extended warranty solutions and support packages for HPE products, ensuring your IT infrastructure remains protected beyond the standard warranty period. Contact our team to explore options that align with your organisation's needs.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Capacity: 256GB (1x256GB)
- Memory Technology: DDR5 SDRAM
- Speed: DDR5-6400 MT/s (PC5-51200)
- CAS Latency: CL60 (CAS-60-52-52)
- Memory Rank: Quad Rank x4 (4Rx4)
- Signal Processing: Registered 3DS (3D Stacked)
- Error Correction: ECC (EC8 / On-Die ECC)
- Supply Voltage: 1.1V
- Form Factor: 288-pin RDIMM
- Peak Bandwidth: 51.2 GB/s
- Compatible Platforms: HPE ProLiant DL360, DL380, DL385, DL365, DL345, DL325 Gen11

FAQs

Q: Which HPE servers is the P73446-B21 compatible with?
A: The P73446-B21 is qualified for HPE ProLiant Gen11 server platforms, including the DL360 Gen11, DL380 Gen11, DL385 Gen11, DL365 Gen11, DL345 Gen11, and DL325 Gen11. Always verify your server's memory population rules and maximum supported capacity before ordering.

Q: What makes HPE Smart Memory different from standard third-party DDR5 DIMMs?
A: HPE DDR5 Smart Memory modules are designed and qualified exclusively for HPE servers. They unlock platform-specific performance and management features — such as enhanced memory monitoring via HPE iLO — that are unavailable with generic third-party DIMMs. They also undergo rigorous HPE validation testing to ensure enterprise-grade reliability.

Q: What is 3DS (3D Stacked) Registered memory and why does it matter?
A: 3D Stacked (3DS) technology stacks multiple DRAM dies vertically within a single package, enabling extremely high memory capacity — 256GB — in a single DIMM slot. This is critical for workloads such as in-memory databases, HPC simulations, and large-scale virtualisation that require maximum addressable memory per server.

Q: Does this memory module support ECC?
A: Yes. The P73446-B21 features On-Die ECC (EC8), which detects and corrects single-bit memory errors in real time. This is essential for mission-critical enterprise applications where data integrity and system uptime cannot be compromised.

Q: Can I purchase the HPE P73446-B21 in Australia and how quickly can it ship?
A: Yes. The HPE P73446-B21 is stocked and sold by IP Trading at iptrading.com.au, an Australian B2B IT hardware reseller. It is in stock and ready to dispatch, making it suitable for time-sensitive server upgrade or deployment projects across Australia.

Q: How many of these DIMMs can I install in a single server, and what is the maximum memory configuration?
A: The number of DIMMs and maximum total memory depends on your specific HPE Gen11 server model and its memory slot configuration. For example, the DL380 Gen11 supports up to 32 DIMM slots, which could allow up to 8TB of total memory using 256GB 3DS RDIMMs. Consult HPE's QuickSpecs for your server model for exact population guidelines.

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