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HPE 32GB 2Rx4 DDR4-2666V PC4-21300 ECC Registered Memory Samsung M393A4K40DB2-CTD 815100-B21 850881-001 840758-091

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SKU M393A4K40DB2-CTD-HPE
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  • Specifications
  • Description
Manufacturer Part Number 815100-B21 / 850881-001 / 840758-091
Manufacturer HPE / Samsung
Condition Refurbished
Standard Warranty 90 Day Replacement Warranty
Item Category Memory
Model M393A4K40DB2-CTD
Form Factor
Interface
External Interfaces
Storage Capacity 32GB
Transfer Rate 2666 MHz
Network Management Type
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Number of Cores
Cache
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TDP
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CPU Type
HDD Form Factor
HDD Interface
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HDD Storage Capacity
HDD Transfer Rate
Memory Bus Speed
Memory Capacity Per Module
Memory Features
Memory Form Factor
Memory Kit Brand
Memory Kit Breakdown
Memory Kit Speed
Memory Kit Technology
Memory Kit Total Capacity
Memory Kit Voltage
Memory Number of Modules
Memory Number of Pins
Memory Total Capacity
Memory Type
Network Ports
Processor Model
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HPE 32GB 2Rx4 DDR4-2666V PC4-21300 ECC Registered Memory Samsung M393A4K40DB2-CTD 815100-B21 850881-001 840758-091

Upgrade your server infrastructure with this genuine HPE 32GB DDR4 Registered ECC memory module, manufactured by Samsung and identified by part number M393A4K40DB2-CTD. Designed for enterprise-class HPE ProLiant servers, this module delivers reliable performance, enhanced data integrity, and improved system stability for virtualization, database management, cloud computing, and other demanding workloads.

Operating at 2666MT/s (PC4-21300), this ECC Registered DIMM helps reduce memory-related errors while providing the performance and reliability required in mission-critical environments. Its 2Rx4 rank configuration and low-voltage DDR4 design make it an excellent choice for expanding memory capacity in compatible HPE servers.

Key Features

  • Capacity: 32GB
  • Memory Type: DDR4 ECC Registered (RDIMM)
  • Speed: 2666MT/s (PC4-21300)
  • Rank Configuration: 2Rx4
  • Data Width: x4
  • Form Factor: 288-Pin RDIMM
  • Error Checking: ECC (Error-Correcting Code)
  • Voltage: 1.2V
  • Manufacturer: Samsung
  • Samsung Part Number: M393A4K40DB2-CTD
  • HPE Part Numbers: 815100-B21, 850881-001, 840758-091

Benefits

  • Increases available memory for demanding enterprise applications
  • ECC protection helps maintain data integrity and system reliability
  • Registered design supports server-grade platforms and larger memory configurations
  • Ideal for virtualization hosts, database servers, and cloud environments
  • HPE-qualified memory designed for ProLiant server compatibility

Alternative Part Numbers

  • M393A4K40DB2-CTD
  • 815100-B21
  • 850881-001
  • 840758-091
  • P00924-B21 (HPE SmartMemory 32GB DDR4-2666 RDIMM equivalent specification)
  • 809082-591
  • 809082-B21

Compatible Memory Modules

For best results, install with matching specifications:

  • HPE 32GB 2Rx4 DDR4-2666 ECC RDIMM (815100-B21)
  • Samsung M393A4K40CB2-CTD 32GB DDR4-2666 ECC RDIMM
  • Samsung M393A4K40BB2-CTD 32GB DDR4-2666 ECC RDIMM
  • HPE SmartMemory 32GB DDR4-2666 Registered ECC RDIMM modules
  • Other 32GB 2Rx4 DDR4-2666V PC4-21300 ECC Registered RDIMMs approved for the same HPE server platform

Compatible Server Families

Commonly used in select:

  • HPE ProLiant DL360 Gen10
  • HPE ProLiant DL380 Gen10
  • HPE ProLiant ML350 Gen10
  • HPE Apollo Series Servers
  • Other HPE Gen10 servers supporting DDR4-2666 ECC RDIMM memory

Technical Specifications

  • SKU: M393A4K40DB2-CTD-HPE
  • Capacity: 32GB
  • Memory Technology: DDR4 SDRAM
  • Speed Grade: DDR4-2666V
  • PC Rating: PC4-21300
  • Error Correction: ECC
  • Signal Processing: Registered
  • Rank: Dual Rank (2Rx4)
  • Pins: 288-Pin
  • Voltage: 1.2V
  • Manufacturer: Samsung
  • Application: Enterprise Servers and Workstations

Note: This module is an ECC Registered RDIMM and is not compatible with desktop systems, laptops, UDIMM memory, or LRDIMM-only configurations. Always verify compatibility with your specific server model before purchase.