Samsung M393A2K43CB2-CTD6Q 16GB Memory PC4-21300
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M393A2K43CB2-CTD6Q Samsung 16GB 1X16GB 2666MHZ PC4-21300 New

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Part Number#: M393A2K43CB2-CTD6Q
List Price was: $509.30
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Short Description:
M393A2K43CB2-CTD6Q Samsung 16GB 1X16GB 2666MHZ PC4-21300 CL19 ECC Registered 2RX8 1.2V DDR4 SDRAM 288-PIN RDIMM Samsung Memory Module For Server. New Factory Sealed 3 Years Samsung Warranty.
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Introduction to M393A2K43CB2-CTD6Q Samsung

M393A2K43CB2-CTD6Q is a memory module manufactured by Samsung, which is designed for use in servers, workstations, and other high-performance computing applications. It is a 16GB DDR4 memory module that operates at a speed of 2666MHz and has a CAS latency of 19 cycles.

One of the key features of this memory module is its use of Error-Correcting Code (ECC) technology. ECC allows the module to detect and correct errors that occur during data transmission, which is particularly important in mission-critical applications where data integrity is essential. The M393A2K43CB2-CTD6Q module is also designed to operate with a voltage of 1.2V, which makes it more energy-efficient compared to older DDR3 memory modules.

This memory module is a Registered DIMM (RDIMM), which means that it has a buffer chip that helps to reduce electrical load on the memory controller, allowing for larger memory configurations to be used in a single system. Additionally, the M393A2K43CB2-CTD6Q module supports advanced memory features such as dual-rank, memory mirroring, and memory sparing, which provide additional flexibility and reliability in enterprise computing environments.

Understanding Memory Capacity and Frequency

Memory capacity and frequency are two important specifications to consider when selecting a memory module for your computer system.

Memory capacity refers to the amount of data that can be stored in a memory module. It is typically measured in gigabytes (GB) or terabytes (TB). The capacity of a memory module determines how many applications and programs can be open simultaneously and how much data can be processed at once. In general, higher capacity memory modules are better suited for applications that require large amounts of memory, such as video editing or data analysis.

Memory frequency, also known as clock speed, refers to the speed at which data can be read from or written to the memory module. It is measured in megahertz (MHz) or gigahertz (GHz). The frequency of a memory module determines how quickly the data can be accessed by the processor, which affects overall system performance. Higher frequency memory modules are typically faster and can provide improved system performance, particularly in memory-intensive applications such as gaming or video editing.

It's important to note that memory capacity and frequency are not the only factors that affect system performance. Other factors such as memory timings, voltage, and latency also play a role in determining overall memory performance. Additionally, the amount of memory and frequency required for optimal performance will depend on the specific system and applications being used.

When selecting a memory module, it's important to consider both capacity and frequency, as well as other factors such as memory timings, voltage, and latency. By selecting the right memory module for your system and applications, you can help to ensure optimal system performance and efficiency.

Performance and Benchmarking

The performance of the M393A2K43CB2-CTD6Q Samsung memory module can be benchmarked and evaluated using various tools and techniques to measure its speed, latency, and efficiency.

One commonly used tool for benchmarking memory performance is MemTest, which tests the memory module for errors and provides detailed performance statistics. MemTest can be used to evaluate the module's read and write speeds, as well as its latency and error correction capabilities.

Another benchmarking tool that can be used to evaluate memory performance is PassMark PerformanceTest, which provides a comprehensive suite of tests to evaluate system performance. PassMark PerformanceTest includes memory tests to evaluate read and write speeds, latency, and other memory performance metrics.

In addition to benchmarking tools, real-world performance tests can also be used to evaluate the performance of the M393A2K43CB2-CTD6Q memory module. These tests can include running memory-intensive applications such as video editing software or virtual machines to evaluate system performance and stability.

General Information

  • Manufacturer: Samsung
  • Manufacturer Part Number: M393A2K43CB2-CTD6Q
  • Type: Memory (RAM)
  • Sub-Type: PC4-21300
  • Product Name: 16GB DDR4 SDRAM Memory Module

Technical Information

  • Storage Capacity: 16GB
  • Memory Technology: DDR4 SDRAM
  • Number Of Modules: 1 X 16GB
  • Memory Speed: 2666mhz DDR4-2666/PC4-21300
  • Data Integrity Check: ECC
  • Features: Dual Rank, Registered
  • Cas Latency Timings: Cl19
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days


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In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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