Samsung M386AAK40B40-CWD6Y 128GB Memory PC4-21300
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Samsung M386AAK40B40-CWD6Y 128GB 2666Mhz PC4-21300 Cl19 DDR4 Bulk

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Part Number#: M386AAK40B40-CWD6Y
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Short Description:
M386AAK40B40-CWD6Y 128GB 2666Mhz PC4-21300 Cl19 Ecc Registered Octa Rank X4 1.2v DDR4 SDRAM 288-Pin Lrdimm Samsung Memory Module for Server | Made by Samsung | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days
Introduction to M386AAK40B40-CWD6Y DDR4 RAM
M386AAK40B40-CWD6Y is a type of DDR4 RAM (Random Access Memory), which is a high-performance memory module designed for use in servers, workstations, and high-end desktop computers. DDR4 RAM is an improvement over previous DDR generations, offering increased capacity, speed, and reliability. The M386AAK40B40-CWD6Y module specifically has a capacity of 128GB, operates at a speed of 2666Mhz, and uses PC4-21300 memory specifications. Additionally, it is ECC (Error Correction Code) Registered and has a CL19 latency.
Benefits of ECC Registered RAM

ECC Registered RAM provides several benefits over non-ECC RAM:

  • Data Integrity: ECC Registered RAM uses error correction algorithms to detect and correct single-bit errors in real-time, ensuring the accuracy and integrity of stored data.
  • Reliability: ECC Registered RAM is designed to be more reliable than non-ECC RAM, as it can detect and correct memory errors before they cause data loss or system crashes.
  • Improved Performance: ECC Registered RAM can improve system performance by detecting and correcting errors that would otherwise slow down the system or cause it to crash.
  • Better Stability: ECC Registered RAM helps prevent system crashes and blue screens, leading to better stability and reliability.
  • Enterprise Applications: ECC Registered RAM is often used in enterprise-level systems where high data accuracy and reliability are critical, such as in servers and data centers.
  • Increased Uptime: ECC Registered RAM can reduce downtime by detecting and correcting memory errors before they cause the system to crash, leading to increased system uptime.
Key Features of M386AAK40B40-CWD6Y DDR4 RAM
  • Capacity: 128GB, providing ample memory for demanding applications and large data storage needs.
  • Speed: 2666Mhz, offering faster data transfer rates and improved performance compared to slower DDR4 modules.
  • PC4-21300: Complies with the latest DDR4 memory specifications, ensuring compatibility with a wide range of systems.
  • CL19 Latency: A low latency of CL19 provides quick access to data stored in the memory, improving overall system performance.
  • ECC Registered: Provides error correction and increased reliability, helping to prevent data corruption and system crashes.
  • DDR4 Technology: The latest generation of DDR memory technology, offering improved performance and increased capacity compared to DDR3.
  • Improved Power Efficiency: DDR4 technology uses less power than previous DDR generations, reducing power consumption and improving energy efficiency.
  • Registered Design: The ECC Registered design allows for advanced error correction and improved reliability, making it well-suited for use in demanding applications.
  • Heat Spreader: A built-in heat spreader helps to dissipate heat and improve stability, ensuring reliable performance even under heavy load conditions.
  • Advanced Testing: The M386AAK40B40-CWD6Y DDR4 RAM module has undergone rigorous testing to ensure reliability and performance, making it a top choice for demanding applications.
General Information of this Samsung M386AAK40B40-CWD6Y
  • Brand Name: Samsung
  • Model Number or SKU# M386AAK40B40-CWD6Y
  • Type: Memory (RAM)
  • RAM Type: PC4-21300
  • Product Name: 128GB DDR4 SDRAM Memory Module
Technical Information about 128GB PC4-21300 Ram
  • Storage Capacity: 128GB
  • Memory Technology: DDR4 SDRAM
  • Number Of Modules: 1 X 128GB
  • Bus Speed: 2666mhz DDR4-21300/PC4-2666v
  • Data Integrity Check: Ecc
  • Signal Processing: Registered
  • Cas Latency Timings: Cl19
  • Rank Features: Octa Rank X4

Physical Characteristics for Samsung Memory

  • Dimensions (W X D X H) : 8.89 X 19.81 X 1.91 Cm (3.5 X 7.8 X 0.75 In)
  • Weight: 0.45 Kg (1 Lb)

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

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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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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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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Estimated delivery time: 5-8 business days

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