HP 684066-B21 16GB Memory PC3-12800
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HP 684066-B21 16GB RAM 1600mhz Pc3-12800 Cl11 Ecc DDR3 SDRAM Bulk

Availability: In Stock
Part Number#: 684066-B21
List Price was: $527.91
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New Bulk Pack

Short Description:
684066-B21 16 Gigabytes(GB) 1x16GB 1600 Megahertz (MHz) Pc3-12800 Cl11 Dual Rank 240-Pin Error correction code (ECC) Registered Double Data Rate 3 (DDR3) SDRAM Dimm Memory Module for Server | Made by HP | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days
Product overview for the HP 684066-B21

In the realm of computer hardware, the HP 684066-B21 16GB RAM stands out as a critical component, offering substantial memory capacity and advanced features. This detailed guide aims to provide a comprehensive understanding of this specific RAM module, breaking down its specifications, functionalities, and the significance of each technical aspect.

Technical SpecificationsModel and Brand Identification

The HP 684066-B21 is a product of Hewlett-Packard (HP), a renowned name in the world of computing. Understanding the importance of brand reliability is crucial when selecting computer components, and HP's reputation for quality adds a layer of assurance to this RAM module.

Capacity: 16GB

The RAM module boasts a substantial 16GB capacity, signifying its ability to handle memory-intensive tasks efficiently. This capacity is particularly relevant for users engaging in resource-demanding applications, such as video editing, 3D rendering, and virtualization.

Memory Type: DDR3 SDRAM

The DDR3 Synchronous Dynamic Random Access Memory (SDRAM) technology is a well-established standard known for its reliability and widespread compatibility. DDR3 SDRAM ensures optimal performance and responsiveness, making it suitable for various computing needs.

Speed: 1600MHz

The RAM module operates at a clock speed of 1600MHz, indicating the number of cycles per second at which it can perform data operations. Higher clock speeds generally result in better overall system performance, especially during multitasking and data-intensive operations.

CAS Latency (CL): 11

CAS Latency is a critical factor that influences memory performance. A CL11 rating implies a relatively low latency, contributing to faster data access times. This is particularly beneficial for tasks that rely heavily on rapid memory retrieval, such as gaming and real-time applications.

ECC (Error-Correcting Code)

The inclusion of Error-Correcting Code (ECC) in this RAM module is noteworthy. ECC is a feature that detects and corrects memory errors, enhancing system stability and reliability. This makes the HP 684066-B21 suitable for applications where data accuracy is paramount, such as server environments.

Form Factor: 240-Pin Registered

The 240-pin registered form factor denotes the physical design of the RAM module and its compatibility with specific motherboard slots. The "registered" designation indicates that the module uses a register to temporarily hold data, contributing to increased stability and performance, particularly in server environments.

Significance of SpecificationsPerformance Boost

The combination of a 16GB capacity and a 1600MHz clock speed translates to a significant performance boost for systems utilizing the HP 684066-B21 RAM module. This enhanced performance is especially beneficial for users engaging in memory-intensive tasks, such as content creation, virtualization, and multitasking.

Reliability and Stability

The inclusion of ECC in this RAM module plays a pivotal role in enhancing system reliability. ECC detects and corrects single-bit errors, reducing the risk of data corruption and system crashes. This feature is particularly crucial in professional settings where system downtime is not an option.


The DDR3 SDRAM technology employed by this module ensures versatility and compatibility with a wide range of systems. Whether used in desktops, workstations, or servers, the HP 684066-B21 adapts to various computing environments, offering users flexibility in their hardware configurations.

Server-Grade Performance

The 240-pin registered form factor and ECC support position this RAM module as a viable choice for server deployments. Server-grade performance is essential for handling the demands of data centers, ensuring seamless operation under heavy workloads and 24/7 usage scenarios.

Use Cases

Professional Workstations

Professionals working with resource-intensive applications, such as graphic design, video editing, and 3D modeling, can benefit significantly from the 16GB capacity and high-speed performance of the HP 684066-B21. The ECC feature adds an extra layer of data integrity crucial in professional environments.

Gaming Systems

Gamers seeking optimal performance in their gaming rigs will appreciate the combination of a 16GB capacity and a 1600MHz clock speed. The low CAS latency (CL11) ensures quick data access, contributing to a smoother gaming experience with reduced lag.

Server Environments

The ECC support and 240-pin registered form factor make this RAM module well-suited for server deployments. It provides the stability and error correction necessary for critical server operations, ensuring data accuracy and minimizing the risk of system failures.

Main Specification about the HP 684066-B21
  • Manufacturer: HP
  • Model Number or SKU# 684066-B21
  • Product Type: Memory (RAM)
  • RAM Type: PC3-12800
  • Product Name: 16GB DDR3 SDRAM Memory Module
Technical Information for the 16GB DDR3 RAM
  • Storage Capacity: 16GB
  • Memory Technology: DDR3 SDRAM
  • Number Of Modules: 1 X 16GB
  • Bus Speed: 1600mhz DDR3-1600/PC3-12800
  • Data Integrity Check: ECC
  • Signal Processing: Registered
  • Cas Latency Timings: Cl11
  • Features: Dual Rank
  • Platform Support: Proliant Server
  • Form Factor: 240-Pin Dimm
Compatibility of 16GB Memory Module
  • Proprietary HP Proliant Server - Bl465c G7
  • Proprietary HP Proliant Server - Bl685c G7
  • Proprietary HP Proliant Server - Dl165 G7
  • Proprietary HP Proliant Server - Dl385 G7
  • Proprietary HP Proliant Server - Dl585 G7

Finally, the HP 684066-B21 16GB RAM 1600MHz PC3-12800 CL11 ECC DDR3 SDRAM 240-Pin Registered stands as a robust and versatile memory solution. Its combination of high capacity, speed, and error-correcting capabilities makes it suitable for a variety of computing needs, from professional workstations to gaming systems and server environments. Understanding its technical specifications and the significance of each feature empowers users to make informed decisions when selecting memory components for their systems. Whether you prioritize performance, reliability, or versatility, the HP 684066-B21 is a noteworthy contender in the realm of DDR3 SDRAM modules.

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.


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30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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Worldwide Shipping Options:

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