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Home / HP / Server RAM / HP 815101-B21

HP 815101-B21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory

Part Number: 815101-B21     Brand: HP
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Condition
Quantity

HP 815101-B21 Specs

▲
Brand
HP
Capacity
64GB
Memory Speed
2666MHz
Data Integrity Check
ECC
Rank
4Rx4
Latency Timing
CL19
Pins
288 Pin
Memory Technology
DDR4
Memory Form Factor
LRDIMM
HPE Server Generations
Gen 9/Gen 4/Gen 3/Gen 10

About HP 815101-B21

▲

HP 815101-B21 is a 64GB DDR4-2666 ECC LRDIMM server memory module for enterprise hardware. It is supplied as one 64GB module and is designed for HPE ProLiant Gen9 and Gen10 servers, as well as HPE Apollo, Synergy and Blade systems, including the BL460c Gen10.

This HPE SmartMemory module operates at 2666MHz, also known as PC4-21300, with quad-rank 4Rx4 organization, CL19 timing (19-19-19), 1.2V voltage and a 288-pin form factor. Its load-reduced DIMM design supports ECC error correction and is identified by HPE as a 64GB quad-rank x4 DDR4-2666 CAS-19-19-19 memory kit.

What can I use 64GB of RAM for?

This 64GB module is intended for enterprise server hardware, including compatible HPE ProLiant Gen9 and Gen10 servers, Apollo systems, Synergy systems and Blade systems.

This HP Server RAM 815101-B21 is compatible with these HP Servers

▲
ProLiant DL388
Proliant BL460c
Proliant DL160
Proliant DL360
Proliant DL380
Proliant DL560
Proliant DL580
Proliant ML350
Proliant XL170r
Proliant XL190r
Proliant XL230k

HP 815101-B21 Description

▼

Introducing the HP 815101-B21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory, a high-performance memory module designed to enhance the speed and reliability of your HPE ProLiant servers. Ideal for data-intensive applications, virtualization, and enterprise workloads, this memory module is compatible with a wide range of ProLiant server models including ProLiant DX, DL, ML, SL, BL, XL, and CL series. Whether you're upgrading your existing infrastructure or building a new server environment, this memory ensures efficient and stable operation across multiple HPE server generations such as Gen 3, Gen 4, Gen 9, and Gen 10.

Let's explore the key specifications that make this memory module a top choice for server upgrades and maintenance:

  • Brand: HP
  • Capacity: 64GB, providing ample memory for demanding workloads
  • Memory Speed: 2666MHz, delivering fast data processing and improved system responsiveness
  • Data Integrity Check: ECC (Error-Correcting Code) technology to detect and correct memory errors, ensuring system stability
  • Rank: 4Rx4, optimizing performance and compatibility
  • Latency Timing: CL19, balancing speed and efficiency
  • Pins: 288 Pin, suitable for DDR4 LRDIMM slots
  • Memory Technology: DDR4, the latest standard for high-speed memory
  • Memory Form Factor: LRDIMM, designed for large capacity and enhanced server performance
  • HPE Server Generations: Compatible with Gen 3, Gen 4, Gen 9, and Gen 10 servers

For maintenance and replacement purposes, the following spare part numbers correspond to this memory module:

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ⓘ We found 17 subs for the HP 815101-B21
100% Match
HP 838085-B21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 868844-001 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 881901-B21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
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✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 815101-H21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
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✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 840759-691 64GB 2666 MHz 4Rx4 288 Pin ECC DDR4 DIMM Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 882449-001 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 882362-091 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 880842-B21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 850882-001 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 832800-B21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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✓ Memory Technology: DDR4
✓ Capacity: 64GB
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+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
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✓ Memory Speed: 2666MHz
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✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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HP 840759-091 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 64GB
✓ Brand: HP
+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL19
✓ Chipset: 4Rx4
✓ Memory Form Factor: LRDIMM
✓ Memory Speed: 2666MHz
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✓ Memory Technology: DDR4
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+ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✕ CAS Latency: CL19
✓ Chipset: 8Rx4
✓ Memory Form Factor: LRDIMM
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2025-06-12
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The sales guy at Boost Hardware was super knowledgeable. He helped me find the right part for my older Proliant server.
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2025-04-09
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We purchased the wrong part by mistake. Boost hardware made it easy to return and quickly issued me a refund.
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