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Home / HP / Server RAM / HP 408851-B21

HP 408851-B21 2GB 667MHz 1Rx4 240 Pin ECC DDR2 Memory

Part Number: 408851-B21     Brand: HP
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408851-B21 HP Image

408851-B21 Price

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$69.00 $70.40
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Condition
Quantity

HP 408851-B21 Specs

▲
Brand
HP
Capacity
2GB
Memory Speed
667MHz
Data Integrity Check
ECC
Voltage
1.8v
Rank
1Rx4
Latency Timing
CL5
Pins
240 Pin
Memory Technology
DDR2
Buffered/Registered
Yes
Memory Form Factor
DIMM
HPE Server Generations
Gen 6/Gen 5/Gen 10+

This HP Server RAM 408851-B21 is compatible with these HP Servers

▲
ProLiant DL365
Proliant BL260c
Proliant BL2x220
Proliant BL45p
Proliant BL465c
Proliant BL685c
Proliant DL165
Proliant DL180
Proliant DL365
Proliant DL385
Proliant DL585
Proliant DL785
Proliant ML150
Proliant SL170s

HP 408851-B21 Description

▼

The HP 408851-B21 2GB 667MHz 1Rx4 240 Pin ECC DDR2 Memory is a reliable and efficient memory module designed to enhance the performance of your HPE ProLiant servers. Ideal for use in a wide range of server models, including ProLiant DX, DL, ML, SL, BL, XL, and CL series, this memory module is perfect for businesses looking to upgrade or maintain their server infrastructure with compatible and high-quality components.

This memory module supports error-correcting code (ECC) technology, which helps detect and correct data corruption, ensuring data integrity and system stability—an essential feature for critical server environments. It operates at a speed of 667MHz, providing a balanced combination of performance and energy efficiency at a low voltage of 1.8V. The module comes in a 240-pin DIMM form factor, making it compatible with Gen 5, Gen 6, and Gen 10+ HPE server generations.

Key specifications of the HP 408851-B21 memory module include:

  • Brand: HP
  • Capacity: 2GB
  • Memory Speed: 667MHz
  • Data Integrity Check: ECC (Error-Correcting Code)
  • Voltage: 1.8V
  • Rank: 1Rx4
  • Latency Timing: CL5
  • Pins: 240 Pin
  • Memory Technology: DDR2
  • Buffered/Registered: Yes
  • Memory Form Factor: DIMM
  • Compatible HPE Server Generations: Gen 5, Gen 6, Gen 10+

For your convenience, here are some related spare part numbers compatible with this memory module:

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ⓘ We found 7 subs for the HP 408851-B21
100% Match
HP 805351-B21 32GB 2400Mhz 2Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 32GB
✓ Brand: HP
✓ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL17
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 2400Mhz
✓ Buffered/Registered: Non
90% Match
HP 408855-B21 16GB 667MHz 2Rx4 240 Pin ECC DDR2 Memory
✓ Memory Technology: DDR2
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.8v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL5
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 667MHz
✕ Buffered/Registered: Yes
90% Match
HP 408853-B21 4GB 667MHz 2Rx4 240 Pin ECC DDR2 Memory
✓ Memory Technology: DDR2
✓ Capacity: 4GB
✓ Brand: HP
✓ Voltage: 1.8v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL5
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 667MHz
✕ Buffered/Registered: Yes
90% Match
HP 809083-091 32GB 2400Mhz 2Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 32GB
✓ Brand: HP
✓ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL17
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 2400Mhz
✕ Buffered/Registered: Yes
90% Match
Samsung M393A4K40CB1-CRC4Q 32GB 2400Mhz 2Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 32GB
✓ Brand: Sun
✓ Voltage: 1.2v
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL17
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 2400Mhz
✕ Buffered/Registered: Yes
81% Match
HP 397415-B21 8GB 667MHz 2Rx4 240 Pin ECC DDR2 Memory
✓ Memory Technology: DDR2
✓ Capacity: 8GB
✓ Brand: HP
✓ Pins: 240 Pin
✓ ECC: ECC
✕ CAS Latency: CL5
✕ Voltage: 1.8v
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 667MHz
✓ Buffered/Registered: Yes
81% Match
HP 819412-001 32GB 2400Mhz 2Rx4 288 Pin ECC DDR4 Memory
✓ Memory Technology: DDR4
✓ Capacity: 32GB
✓ Brand: HP
✓ Pins: 288 Pin
✓ ECC: ECC
✓ CAS Latency: CL17
✕ Voltage: 1.8v
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 2400Mhz
✕ Buffered/Registered: Yes

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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.
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Even P.
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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Good purchasing experience.
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The refurbished drives we ordered were in perfect condition.
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