HPE 835955-B21 16GB Dual Rank x8 DDR4-2666MHz CL19 ECC Reg SmartMemory

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  • HPE 835955-B21 16GB (1x16GB) Dual Rank x8 DDR4 2666MHz CL19 (CAS-19-19-19) ECC Registered PC4-21300 288Pin DIMM SDRAM Smart Memory Kit (Brand New with 3 Years Warranty)
  • HPE 835955-B21 16GB (1x16GB) Dual Rank x8 DDR4 2666MHz CL19 (CAS-19-19-19) ECC Registered PC4-21300 288Pin DIMM SDRAM Smart Memory Kit (Brand New with 3 Years Warranty)
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HPE 835955-B21 16GB (1x16GB) Dual Rank x8 DDR4 2666MHz CL19 (CAS-19-19-19) ECC Registered PC4-21300 288Pin DIMM SDRAM Smart Memory Kit (3 Years Warranty)

HPE Server Memory is designed for SMB and enterprise customers with a significant need for performance and capacity along with a desire to manage total cost of ownership. HPE SmartMemory enables total server memory optimization, runs at top throughput speed and is among the most power-efficient memory available. In addition to performance and efficiency, HPE SmartMemory also delivers on reliability. Only the highest-quality DRAM modules are selected from top suppliers. Now more than ever, DRAM quality is critical, as data center trends such as server virtualization, cloud computing, and the use of large database applications have increased the need for higher-capacity memory with greater up-time. HPE SmartMemory undergoes rigorous qualification and testing processes that unlock memory performance features available only with HPE servers.

High Performance
HPE DDR4 2666 MT/s SmartMemory provides up to a 66% improvement in bandwidth in comparison to DDR4 2400 MT/s memory modules. HPE DDR4 SmartMemory delivers up to a 4.7% improvement in latency at 2666 MT/s in comparison to DDR4 2400 MT/s memory modules.

High Reliability
Hewlett Packard Enterprise tests and qualifies HPE DDR4 SmartMemory modules on all HPE server platforms to deliver the highest level of signal integrity. HPE DDR4 SmartMemory prevents unnecessary DIMM replacement and reduces server downtime with advanced memory error detection technology. HPE uses the highest quality materials for its DDR4 server memory, reducing issues that may affect signal integrity and increasing system reliability. HPE provides server memory that performs above industry standards, enabling customers to increase the performance of their servers without having to increase the amount of memory purchased.

The HPE 835955-B21 is 16GB (1X16GB) DDR4 module that operates at speeds up to 2666MHz and has a CL19 latency with extended timings of 19-19-19. It is a high performance smart memory and is ECC Registered. It conforms to the industry standard RDIMM layout of 288 pins and is compatible with computers that take DDR4 RDIMM memory. This Dual Rank memory comes with 3 Years Warranty.


Brand: HPE
MPN: 835955-B21

Option Part Number: 835955-B21
Spare Part Number: 868846-001
Assembly Number: 840756-091


Capacity: 16 GB
Upgrade Type: System specific


Type: DRAM - SmartMemory Kit
Technology: DDR4 SDRAM
Form Factor: DIMM 288-pin
DIMM Capacity: 16 GB
DIMM Rank: Dual
DIMM Native Speed (MT/s): 2666 MT/s
Speed: 2666 MHz (PC4-21300)
Latency Timings: CL19 (CAS-19-19-19)
Data Integrity Check: ECC
Features: Dual rank, Registered
Chips Organization: x8
Voltage: 1.2 Volt

Product Dimensions & Weight

Height: 3.50 inch
Width: 7.80 inch
Depth: 0.75 inch
Weight: 1 lbs

Compatibility Information

Designed for

HPE ProLiant BL Series: BL460c Gen10, DL360 Gen10, DL360 Gen10 Base, DL360 Gen10 Entry, DL360 Gen10 High Performance, DL360 Gen10 Low, DL360 Gen10 Performance, DL380 Gen10, DL380 Gen10 Base, DL380 Gen10 Entry, DL380 Gen10 High Performance, DL380 Gen10 Performance, DL560 Gen10, DL560 Gen10 Base, DL560 Gen10 Entry, DL560 Gen10 Performance, DL580 Gen10, DL580 Gen10 Base, DL580 Gen10 Entry, DL580 Gen10 Performance Servers

HPE ProLiant ML Series:ML350 Gen10, ML350 Gen10 Base, ML350 Gen10 Entry, ML350 Gen10 Performance, ML350 Gen10 Solution, ML350 Gen10 Sub-Entry Servers

HPE ProLiant XL Series:XL170r Gen10, XL190r Gen10, XL230k Gen10 Compute Tray, XL450 Gen10 Servers

HPE Synergy 480 Gen10 Base Compute Module, 480 Gen10 Compute Module, 480 Gen10 Entry Compute Module, 480 Gen10 Performance Compute Module, 480 Gen10 Premium Backplane Compute Module, 480 Gen10 Standard BackPlane Compute Module, 480 Gen10 w/o Drives Compute Module, 660 Gen10 Base Compute Module, 660 Gen10 Compute Module, 660 Gen10 Entry Compute Module, 660 Gen10 Performance Compute Module and 660 Gen10 Premium Compute Module

Contact us with any questions or to verify this model’s compatibility with your current server or storage array.

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Warranty Information

3 Years Warranty
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