HPE 32GB (1x32GB) Dual Rank x8 DDR5-4800 CAS-40-39-39 Unbuffered Standard Memory Kit
Fits 2 HPE ProLiant server models. See the list
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Part number cross-reference
- Part number
- P64339-B21
Overview
This item, P64339-B21, is the HPE option part number for the product described as 32GB (1x32GB) Dual Rank x8 DDR5-4800 CAS-40-39-39 Unbuffered Standard Memory Kit. Further details below.
Upgrade your server's memory with this high-performance 32GB DDR5 SmartMemory module. Operating at 4800 MHz (PC5-38400) with CL40 Latency Timings, this unbuffered DIMM delivers exceptional speed and responsiveness for demanding applications. Featuring dual-rank architecture and operating at 1.2V, this module enhances your system's multitasking capabilities and overall performance.
This SmartMemory module is designed for easy installation and optimal compatibility. Compatible servers include but may not be limited to the HPE DL20 Gen11 and ML30 Gen11. Boost your server's memory capacity and improve its efficiency with this reliable DDR5 module.
HPE Option Part #: P64339-B21
HPE Spare Part #: P64634-001
HPE Assembly Part #: P64341-0A1
PRODUCT SPECIFICATIONS FOR P64339-B21:
- Capacity: 32 GB
- Upgrade Type: System specific
- Type: DRAM memory module
- Technology: DDR5 SDRAM
- Form Factor: DIMM 288-pin
- Speed: 4800 MHz (PC5-38400)
- Latency Timings: CL40 (40-39-39)
- Features: Dual Rank, unbuffered
- Chips Organization: X8
- Voltage: 1.2 V
COMPATIBLE WITH:
PROLIANT DL SERIES
PROLIANT ML SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR P64339-B21
| Spare PN | Description | |
|---|---|---|
| P64634-001 | SPS-DIMM,32GB PC5-4800B-E,2Gx8 |
Last Updated: 2026-09-15
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 P64339-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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P64339-B21 HPE 32GB (1x32GB) Dual Rank x8 DDR5-4800 CAS-40-39-39 Unbuffered Standard Memory Kit
Filling a whole server?
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