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Home / HP / Server RAM / HP 815101-S21

HP 815101-S21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory

Part Number: 815101-S21     Brand: HP
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Condition

HP 815101-S21 Specs

▲
Brand
HP
Capacity
64GB
Memory Speed
2666MHz
Data Integrity Check
ECC
Voltage
1.2v
Rank
4Rx4
Latency Timing
CL19
Pins
288 Pin
Memory Technology
DDR4
Memory Form Factor
LRDIMM

HP 815101-S21 Description

▼

The HP 815101-S21 64GB 2666MHz 4Rx4 288 Pin ECC DDR4 Memory module is a high-performance server memory designed to enhance the reliability and speed of your enterprise-grade HP ProLiant servers. Compatible with a wide range of ProLiant models including DX, DL, ML, SL, BL, XL, and CL series, this memory module is ideal for data centers and businesses requiring robust memory solutions for virtualization, database management, and intensive computing tasks.

Built with Error-Correcting Code (ECC) technology, this memory ensures data integrity by detecting and correcting common types of internal data corruption. Operating at a fast 2666MHz speed and featuring a substantial 64GB capacity, it supports demanding workloads with low latency (CL19) and efficient power consumption at 1.2 volts. The 4Rx4 rank configuration and 288-pin LRDIMM form factor make it compatible with modern server architectures, providing scalable memory expansion options.

Key specifications of the HP 815101-S21 memory module include:

  • Brand: HP
  • Capacity: 64GB
  • Memory Speed: 2666MHz
  • Data Integrity Check: ECC (Error-Correcting Code)
  • Voltage: 1.2v for energy-efficient operation
  • Rank: 4Rx4
  • Latency Timing: CL19
  • Pins: 288 Pin
  • Memory Technology: DDR4
  • Memory Form Factor: LRDIMM (Load-Reduced DIMM)

For ease of replacement or upgrades, here are some compatible spare part numbers for the HP 815101-S21 module:

Upgrade your HP ProLiant server's memory with the HP 815101-S21 module to ensure optimal performance, reliability, and scalability for your critical business applications.

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ⓘ We found 14 subs for the HP 815101-S21
100% Match
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
100% Match
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
100% Match
HP 1XD87AA 64GB 2666 MHz 4Rx4 288 Pin ECC DDR4 LRDIMM 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
100% Match
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
100% Match
HP 840759-191 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
100% Match
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
100% Match
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
100% Match
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
100% Match
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
100% Match
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
100% Match
HP Q2N39A 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
100% Match
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
100% Match
HP P28223-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
100% Match
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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Gary B.
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.
E
Even P.
2025-04-09
✓ Verified Buyer
★★★★★
We purchased the wrong part by mistake. Boost hardware made it easy to return and quickly issued me a refund.
M
Matthew S.
2025-04-08
✓ Verified Buyer
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Good purchasing experience.
A
Aaron P.
2025-04-04
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The refurbished drives we ordered were in perfect condition.
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2025-04-04
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2025-03-25
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Lindsay M.
2025-03-21
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Good price on the drives we needed.

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