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Home / HP / Server RAM / HP 647881-B21

HP 647881-B21 16GB 1333MHz 2Rx4 ECC DDR3 Memory

Part Number: 647881-B21     Brand: HP
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Condition
Quantity

HP 647881-B21 Product Specs

▲
Brand
HP
Capacity
16GB
Memory Speed
1333MHz
Data Integrity Check
ECC
Voltage
1.35v
Rank
2Rx4
Latency Timing
CL9
Pins
240 Pin
Memory Technology
DDR3
Memory Form Factor
DIMM
HPE Server Generations
Gen 8/Gen 7/Gen 5

This HP Server RAM 647881-B21 is compatible with these HP Servers

▲
Proliant BL465c
Proliant DL385
Proliant SL4545

HP 647881-B21 Description

▼

Upgrade your server’s performance with the HP 647881-B21 16GB 1333MHz 2Rx4 ECC DDR3 Memory. Designed for a wide range of HPE ProLiant servers including ProLiant DX, DL, ML, SL, BL, XL, and CL models, this memory module ensures reliable and efficient operation for your critical workloads. Whether you’re managing data centers, running virtualization, or handling enterprise applications, this 16GB DDR3 DIMM provides the capacity and speed needed to keep your servers running smoothly.

Let’s take a closer look at the key specifications that make this memory module a solid choice for your server upgrade:

  • Brand: HP
  • Capacity: 16GB, ideal for demanding multitasking and heavy workloads
  • Memory Speed: 1333MHz, delivering balanced performance and power efficiency
  • Data Integrity Check: ECC (Error-Correcting Code) technology, ensuring data accuracy and system stability
  • Voltage: Low voltage 1.35V, reducing power consumption and heat generation
  • Rank: 2Rx4, supporting high-density memory configurations
  • Latency Timing: CL9, offering responsive memory access
  • Pins: 240 Pin DIMM form factor, compatible with supported HPE server motherboards
  • Memory Technology: DDR3, a reliable and widely supported memory standard
  • Memory Form Factor: DIMM, designed for server use
  • HPE Server Generations: Compatible with Gen 5, Gen 7, and Gen 8 servers

For your convenience, here are the related spare part numbers associated with this memory module:

Enhance your server’s memory capacity and reliability with the HP 647881-B21 16GB 1333MHz ECC DDR3 module, a trusted component engineered to meet the rigorous demands of enterprise environments.

Trusted by 5000+ IT Managers, System Integrators & Data Center Experts
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289 reviews on
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Everett M.
ⓘ We found 27 subs for the HP 647881-B21
100% Match
HP 690802-B21 8GB 1600MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 8GB
✓ Brand: HP
✓ Voltage: 1.5v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL11
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1600MHz
100% Match
HP 627812-B21 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 628974-081 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP AM387A 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 DIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP AM231A 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 RDIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 647653-M81 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 DIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 647653-08S 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 DIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 647653-08H 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 DIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 628974-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 739928-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 708395-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 627812-S21 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 647652-181 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 DIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 647883-S21 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 687464-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 632204-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 647883-B21 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
100% Match
HP 713985-B21 16GB 1600MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL11
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 1600MHz
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HP 500662-B21 8GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 8GB
✓ Brand: HP
✓ Voltage: 1.5v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 1333MHz
100% Match
HP 687463-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
98% Match
HP 708641-B21 16GB 1866MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.5v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL13
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 1866MHz
+ Buffered/Registered: Yes
98% Match
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.5v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL13
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1866MHz
+ Buffered/Registered: Yes
98% Match
HP 647901-S21 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
+ Buffered/Registered: Yes
98% Match
HP 664692-001 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
+ Buffered/Registered: Non
98% Match
HP 647653-181 16GB 1333 MHz 2Rx4 240 Pin ECC DDR3 DIMM Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
+ Buffered/Registered: Yes
98% Match
HP KTH-PL313LV/16G 16GB 1333Mhz DIMM-1333MHz ECC Buffered
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ Voltage: 1.35v
✓ Pins: 240 Pin
✓ ECC: ECC
✓ CAS Latency: CL9
✓ Chipset: 2Rx4
✓ Memory Form Factor: DIMM
✓ Memory Speed: 1333MHz
+ Buffered/Registered: Yes
70% Match
HP 647901-B21 16GB 1333MHz 2Rx4 240 Pin ECC DDR3 Memory
✓ Memory Technology: DDR3
✓ Capacity: 16GB
✓ Brand: HP
✓ ECC: ECC
✕ CAS Latency: CL9
✕ Pins: 240 Pin
✕ Voltage: 1.35v
✓ Chipset: 2Rx4
✓ Memory Form Factor: RDIMM
✓ Memory Speed: 1333MHz

Customer Reviews

4.8
★★★★★
289 reviews
94% recommend
5
(253)
4
(21)
3
(9)
2
(2)
1
(4)
G
Gary B.
2025-06-12
✓ Verified Buyer
★★★★★
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
★★★★★
Good purchasing experience.
A
Aaron P.
2025-04-04
✓ Verified Buyer
★★★★★
The refurbished drives we ordered were in perfect condition.
M
Mitch F.
2025-04-04
✓ Verified Buyer
★★★★★
BoostHardware always has what I need at reasonable prices.
D
David P.
2025-03-28
✓ Verified Buyer
★★★★★
Delivered on time.
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Louis J.
2025-03-26
✓ Verified Buyer
★★★★★
Found the hard drives I needed. The ordering process was smooth and fast. Got the drives next day.
D
Darryl P.
2025-03-25
✓ Verified Buyer
★★★★★
Excellent personal service, thanks Scott!
L
Lindsay M.
2025-03-21
✓ Verified Buyer
★★★★★
Good price on the drives we needed.

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