Dell A9781928  16GB Memory PC4-21300
If you need a large quantity of A9781928 product - call us through our toll-free number at (800) 675 5044 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
+1 (800) 675 5044 (Toll-Free)
FREE Shipping.

A9781928 Dell 16GB 2666mhz Pc4-21300 Ecc DDR4 SDRAM 288-Pin New

Availability: In Stock
Part Number#: A9781928
List Price was: $993.02
Your Price:
You Save: $566.02 (57% off)


Short Description:
A9781928 16GB 1X16GB Pc4-21300 Cl19 Ecc 2rx8 1.2v 2666mhz DDR4 SDRAM 288-Pin Registered Dimm Memory Module for Server | Made by Dell | Brand New | Samsung OEM
Product Condition:
New Sealed
Warranty provided by ALLHDD.COM:
90 Days
Increased System Stability

The A9781928 Dell 16GB 2666mhz Pc4-21300 Ecc DDR4 SDRAM 288-Pin Reg Ram is a type of memory module designed for use in servers and other high-performance computing systems that require high levels of reliability and stability. Here's how it can contribute to increased system stability:

  • ECC (Error Correction Code) Technology: ECC is a type of memory technology that can detect and correct errors in data that is being read from or written to the memory. This means that if there is a bit error, the ECC memory can automatically correct it, which helps to prevent system crashes and data corruption.
  • Reg (Registered) Memory: Registered memory is a type of memory that uses a buffer to reduce the electrical load on the memory controller. This helps to prevent signal interference and noise, which can cause instability and data errors.
  • Higher Bandwidth and Speed: The A9781928 Dell 16GB 2666mhz Pc4-21300 Ecc DDR4 SDRAM offers higher bandwidth and speed than standard memory modules. This means that data can be transferred more quickly and efficiently, which can help to reduce the workload on the system and prevent bottlenecks that can lead to crashes and other stability issues.
  • Compatibility with Server Systems: The A9781928 Dell 16GB 2666mhz Pc4-21300 Ecc DDR4 SDRAM is specifically designed for use in server systems, which are typically designed for high reliability and stability. This means that the memory is likely to be compatible with the system and its components, reducing the risk of compatibility issues that can cause instability and crashes.
Improved Gaming Performance

The A9781928 Dell 16GB 2666mhz Pc4-21300 Ecc DDR4 SDRAM 288-Pin Reg Ram is a type of computer memory that can improve gaming performance in several ways:

  • Increased Capacity: With 16GB of memory, this RAM allows your computer to store and access more data, which is particularly important for demanding games that require a lot of processing power. This increased capacity means your computer can handle more complex gaming environments without slowing down.
  • Higher Speed: The 2666MHz speed of this RAM means that it can transfer data to and from your CPU faster than lower-speed RAM, reducing the amount of time your computer spends waiting for data to be loaded. This can result in smoother, more responsive gameplay.
  • Lower Latency: The ECC (Error-Correcting Code) feature of this RAM can reduce latency, which is the amount of time it takes for data to travel between your CPU and RAM. Lower latency means your computer can access data more quickly, resulting in faster game loading times and improved overall performance.
  • Improved Stability: The ECC feature also helps to ensure that data stored in memory is accurate and error-free, which can prevent crashes and other issues that can negatively impact gaming performance.
Energy Efficiency

Energy efficiency in RAM refers to how effectively the memory module utilizes power while performing its operations. This is an important consideration, as RAM consumes a significant amount of energy in a computer system.

The A9781928 Dell 16GB 2666mhz Pc4-21300 Ecc DDR4 SDRAM 288-Pin Reg Ram is designed with energy efficiency in mind. It uses DDR4 technology, which is known for its improved power efficiency over previous generations of RAM. DDR4 memory operates at lower voltages compared to DDR3, resulting in reduced power consumption and heat generation.

Additionally, this RAM module has ECC (Error Correcting Code) functionality, which helps to reduce power consumption by detecting and correcting errors in real-time. This ensures that the system does not waste energy attempting to reprocess incorrect data.

The 288-pin Reg design of this RAM module also contributes to its energy efficiency. Registered memory modules, such as this one, use a buffer between the memory controller and the DRAM chips. This buffer helps to reduce the load on the memory controller, which in turn reduces power consumption.

General Information
  • Manufacturer: Dell
  • Manufacturer Part Number: A9781928
  • 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
  • Poweredge C6420
  • Poweredge Fc640
  • Poweredge M640
  • Poweredge M640 Vrtx
  • Poweredge R440
  • Poweredge R540
  • Poweredge R640
  • Poweredge R740
  • Poweredge R740xd
  • Poweredge R940
  • Poweredge T440
  • Poweredge T640
  • Precision Workstation R7920
  • Precision Workstation R7920 Xl
  • Precision Workstation T5820
  • Precision Workstation T5820 Xl
  • Precision Workstation T7820
  • Precision Workstation T7820 Xl
  • Precision Workstation T7920
  • Precision Workstation T7920 Xl
Product Condition:
New Sealed
Warranty provided by ALLHDD.COM:
90 Days

Here, you can check more available conditions of your desired product A9781928 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.

Other Available Categories For - Memory - Pc4-21300


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

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.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

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).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.