HPE Intel Optane 128GB persistent memory 200 Series
Fits 2 HPE ProLiant server models. See the list
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Part number cross-reference
- Part number
- P23532-B21
Overview
This item, P23532-B21, is the HPE option part number for the product described as Intel Optane 128GB persistent memory 200 Series. Further details below.
The HPE Intel Optane 128GB Persistent Memory 200 Series is a powerful memory module that combines high-speed performance with data persistence, making it ideal for memory-intensive workloads. With a 128GB capacity and a speed of 3200 MHz (PC4-25600), it uses 3D XPoint technology to accelerate data access and provide low-latency performance for critical applications.
This memory module is compatible with certain Gen10 Plus and Gen11 HPE ProLiant servers. The list of compatible machines includes but is not limited to these models, offering a reliable upgrade to boost system performance and memory capacity in data-driven environments.
HPE Option Part #: P23532-B21
HPE Spare Part #: P31373-001
PRODUCT SPECIFICATIONS FOR P23532-B21:
- Capacity: 128 GB
- Upgrade Type: System specific
- OEM Manufacturer Equivalent Part Number: HPE P23532-B21
- Width: 5.3 in
- Depth: 0.3 in
- Height: 1.2 in
- Weight: 1.9 oz
- Type: DCPMM memory module
- Technology: DDR-T
- Form Factor: DIMM 288-pin
- Module Height (inch): 1.23
- Speed: 3200 MHz (PC4-25600)
- Features: Heatsink, 3D XPoint Technology, Data Center Persistant Memory
- Voltage: 1.2 V
- Color Category: Black
COMPATIBLE WITH:
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 P23532-B21
| Spare PN | Description | |
|---|---|---|
| P31373-001 | SPS-PMM, 128GB 3200 MT/s PMEM |
Last Updated: 2026-07-27
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
Each server opens that model's memory page, with its slot rules and a kit picker.
Part numbers
Every number below identifies this same part. Match any of them to the label on the part you are replacing.
Questions about P23532-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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P23532-B21 HPE Intel Optane 128GB persistent memory 200 Series
Filling a whole server?
Each server's memory page works out how many modules a capacity takes and where they go. For a full bill of materials, send it with your server model and we reply with pricing and availability within 24 hours.
