This item, P71256-001, is the HPE spare part number for the product described as 64GB (1x64GB) Dual Rank x4 DDR5-6400 CAS-46-45-45 EC8 Registered Smart Memory Kit. Further details below.
Expand your HPE Gen12 server with the P71256-001, a genuine HPE SmartMemory 64GB (1x64GB) DDR5-6400 registered DIMM. Running at 6400 MT/s (PC5-51200) on a 288-pin Dual Rank x4 (2Rx4) RDIMM at just 1.1V, it delivers the bandwidth headroom demanding virtualization, database, and analytics workloads need, while EC8 registered ECC guards against single-bit errors for dependable, around-the-clock uptime.
As HPE SmartMemory, P71256-001 is authenticated by the server to report full performance and reliability data, so you avoid the compatibility guesswork of third-party modules. It is supported in a wide range of Gen12 platforms including the DL320, DL340, DL340e, DL360, DL380, DL380a, DL580, DL110, ML350, EL140, Synergy 480 Gen12, and the Alletra Storage Server 4210 - making it an easy, scalable upgrade path across your fleet.
HPE Option Part #: P69728-B21
HPE Spare Part #: P71256-001
HPE Assembly Part #: P69721-0A1
PRODUCT SPECIFICATIONS FOR P71256-001:
- Capacity: 64 GB (1 x 64 GB module)
- Memory Type: DDR5 SDRAM
- Speed: 6400 MT/s (PC5-51200)
- Form Factor: 288-pin DIMM (RDIMM - Registered DIMM)
- Rank & Organization: Dual Rank (2Rx4), x4 chip organization
- Error Correction: ECC (EC8 Registered)
- Voltage: 1.1V
- CAS Latency: CL52 (or CL46 depending on specific sub-vendor/profile specs)
- Brand: HPE SmartMemory
COMPATIBLE WITH:
PROLIANT DL SERIES
PROLIANT SYNERGY SERIES
PROLIANT ML SERIES
PROLIANT EL SERIES
PROLIANT ALLETRA SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
FREQUENTLY ASKED QUESTIONS FOR P71256-001:
- How much memory does P71256-001 include?
P71256-001 is a single-module kit: one 64GB DDR5 registered DIMM (1x64GB). Order multiple kits to populate additional channels or slots as your workload grows. - Which servers support P71256-001?
P71256-001 is supported in HPE Gen12 platforms including DL320, DL340, DL340e, DL360, DL380, DL380a, DL580, DL110, ML350, and EL140 Gen12, Synergy 480 Gen12, and the Alletra Storage Server 4210. - What are the key technical specs of P71256-001?
It is a 64GB DDR5-6400 (PC5-51200) 288-pin RDIMM, dual rank x4 (2Rx4) organization, EC8 registered ECC, 1.1V, HPE SmartMemory branded. CAS latency is CL46/CL52 depending on the profile.
Last Updated: 2026-08-29
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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.
