HPE 64GB Dual Rank x4 DDR5-4800 CAS-40-39-39 EC8 Registered Smart Memory for Gen11 servers
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Part number cross-reference
- Part number
- P43331-B21
Overview
This item, P43331-B21, is the HPE option part number for the product described as 64GB Dual Rank x4 DDR5-4800 CAS-40-39-39 EC8 Registered Smart Memory for Gen11 servers. Further details below.
Unlock the full potential of your Gen11 servers with the HPE 64GB DDR5-4800 Memory module, designed to support high-performance workloads in demanding enterprise environments. Featuring DDR5 technology, this memory module delivers exceptional speed at 4800 MHz (PC5-38400) with low Latency Timings of CL40 (40-39-39), ensuring fast data access and optimal system responsiveness. The dual-rank x4 configuration, coupled with the registered design, enhances memory throughput and stability, providing reliable performance for memory-intensive applications.
Equipped with Error-Correcting Code (ECC), this memory module ensures data integrity by automatically detecting and correcting errors, making it ideal for applications requiring high reliability. The DIMM 288-pin form factor and 1.1V operating voltage ensure seamless compatibility with certain Gen11 HPE servers, offering a secure and scalable upgrade path for modern data centers.
HPE Option Part #: P43331-B21
HPE Spare Part #: P48502-001
HPE Assembly Part #: P43333-0A1
PRODUCT SPECIFICATIONS FOR P43331-B21:
- Capacity: 64 GB
- Upgrade Type: System specific
- OEM Manufacturer Equivalent Part Number: HPE P43331-B21
- Width: 7.5 in
- Depth: 0.8 in
- Height: 3.5 in
- Weight: 1.41 oz
- Type: DRAM memory module
- Technology: DDR5 SDRAM
- Form Factor: DIMM 288-pin
- Speed: 4800 MHz (PC5-38400)
- Latency Timings: CL40 (40-39-39)
- Data Integrity Check: ECC
- Features: Dual Rank, registered
- Chips Organization: X4
- Voltage: 1.1 V
RESOURCES FOR P43331-B21
Quickspecs for P43331-B21COMPATIBLE WITH:
PROLIANT DL SERIES
PROLIANT ML SERIES
OTHER HPE MACHINES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR P43331-B21
| Spare PN | Description | |
|---|---|---|
 | P48502-001 | SPS-DIMM,64GB PC5-4800B-R,4Gx4 |
Last Updated: 2026-09-19
Other sizes in this family
| Part number | Capacity | Type | Rank | Price | Availability |
|---|
Working out how many you need? Each server's memory page counts the modules for the capacity you want: see Compatible servers.
Specifications
Compatible servers
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Part numbers
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Questions about P43331-B21
Warranty and returns
5-year replacement warranty
Covered against hardware failure for 5 years from the date of purchase. While HPE's own warranty runs, HPE replaces a failed part through the HPE Enterprise Support Center. After that, send it back to us for a working replacement; you ship it to us and we pay Ground or Economy shipping on the replacement.
Ordered the wrong part?
It is the customer's responsibility to verify compatibility before ordering. A part ordered by mistake can be returned for a refund, less a 25% restocking fee, within 5 business days of receipt. Freight is not refunded, and factory-sealed items can only be returned unopened. Check Compatible servers before you order.
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P43331-B21 HPE 64GB Dual Rank x4 DDR5-4800 CAS-40-39-39 EC8 Registered Smart Memory for Gen11 servers
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