HPE Gen10 Memory (1st Gen CPU)
HPE 16GB (1x16GB) Dual Rank x8 DDR4-2666 CAS-19-19-19 Registered Smart Memory Kit
Fits 8 HPE ProLiant server models. See the list
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Part number cross-reference
- Part number
- 835955-B21
Overview
This item, 835955-B21, is the HPE option part number for the product described as 16GB (1x16GB) Dual Rank x8 DDR4-2666 CAS-19-19-19 Registered Smart Memory Kit. Further details below.
Boost your server's performance with this 16GB HPE DDR4-2666 Registered Smart Memory Kit. This module delivers reliable speed and efficiency, operating at 2666MHz with a CAS Latency of 19-19-19, ensuring smooth multitasking and application responsiveness. Registered ECC (Error-Correcting Code) provides enhanced data integrity, minimizing the risk of data corruption and system errors.
This 16GB dual-rank memory module is designed for seamless integration with a range of HPE ProLiant servers including but not limited to the DL380 Gen10, DL360 Gen10, DL560 Gen10, DL580 Gen10, ML350 Gen10, and BL460c Gen10. Operating at a low voltage of 1.2V, this SmartMemory kit optimizes power consumption without sacrificing performance, contributing to a more energy-efficient server environment.
HPE Option Part #: 835955-B21
HPE Spare Part #: 868846-001
HPE Assembly Part #: 840756-091
PRODUCT SPECIFICATIONS FOR 835955-B21:
- Product Line: HPE, HPE SmartMemory
- Model: SmartMemory
- Chips Organization: X8
- Data Integrity Check: ECC
- Latency Timings: 19-19-19
- Memory Specification Compliance: PC4-21300
- Memory Speed: 2666 megahertz
- Memory Technology: DDR4 SDRAM
- Memory Type: DRAM
- Memory Voltage: 1.2 volt
- Registered or Buffered: Registered
- Ram Capacity: 16 GB
- Upgrade Type: System specific
- CAS Latency: CL19
- Form Factor (RAM): DIMM 288-pin
- Product Type: Memory module
- RAM Features: Dual Rank
RESOURCES FOR 835955-B21
Quickspecs for 835955-B21COMPATIBLE WITH:
PROLIANT BL SERIES
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 835955-B21
| Spare PN | Description | |
|---|---|---|
 | 868846-001 | 16GB PC4-2666V-R Synchronous Dynamic Random Access Memory (SDRAM) 1Gx8, operated in Dual Data Rate (DDR4) mode, Dual In-Line Memory Module (DIMM), 2Gx72 |
Last Updated: 2026-10-22
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
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Questions about 835955-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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Complete the RMA request form and send it to us, or choose Warranty or return on the contact form.
Reviews of this part
6 reviews
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Hard to find parts
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Fast service
“We ordered eight of these on Monday with free shipping and they arrived Wednesday. A+++”
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835955-B21 HPE 16GB (1x16GB) Dual Rank x8 DDR4-2666 CAS-19-19-19 Registered Smart Memory Kit
Filling a whole server?
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