This item, P23535-B21, is the HPE option part number for the product described as Intel Optane 256GB persistent memory 200 Series. Further details below.
The HPE Intel Optane 256GB Persistent Memory 200 Series is a high-performance memory module designed for data-driven applications in enterprise environments. With a capacity of 256GB and a speed of 3200 MHz (PC4-25600), it utilizes 3D XPoint technology to deliver low-latency and persistent memory, ensuring faster access to critical data and improved overall system performance.
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, providing businesses with an efficient upgrade to enhance memory capacity and reliability for demanding workloads.
HPE Option Part #: P23535-B21
HPE Spare Part #: P31374-001
HPE Assembly Part #: P23537-001
PRODUCT SPECIFICATIONS FOR P23535-B21:
- Capacity: 256 GB
- Upgrade Type: System specific
- OEM Manufacturer Equivalent Part Number: HPE P23535-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 P23535-B21
| Spare PN | Description | |
|---|---|---|
 | P31374-001 | SPS-PMM, 256GB 3200 MT/s PMEM |
Last updated: 5/23/2025
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This product is warrantied against hardware failure for a period of 5 Years from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
