Dell 4256W 7.2K RPM Hard Drive
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Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard New

Availability: In Stock
Part Number#: 4256W
List Price was: $439.39
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Short Description:
4256W 2TB (Terabytes) 7200 RPM 512N Serial Advanced Technology Attachment (SATA) 128MB (Megabyte) 3.5inch Gigabits Per Second (6GBPS) Hard Drive with Tray 13 Generation Poweredge for Server | Made by Dell | Brand New with 2 Years Warranty
Product Condition:
New Sealed
Warranty provided by ALLHDD.COM:
90 Days

Product Overview

The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" is a type of computer storage device manufactured by Dell Technologies. It is designed to provide reliable and high-performance data storage for servers and workstations. In this article, we will explore the features and benefits of this hard drive, including its capacity, speed, and compatibility.


The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" has a capacity of 2 terabytes (TB), which means it can store up to 2 trillion bytes of data. This is a significant amount of storage and is ideal for organizations that need to store large amounts of data, such as databases, applications, and media files. The hard drive's high capacity can also help reduce the number of physical drives needed to store data, which can save space and reduce maintenance costs.


The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" operates at a rotational speed of 7,200 revolutions per minute (RPM). This high rotational speed allows data to be accessed and written to the disk faster than traditional hard drives, which typically operate at 5,400 RPM. The increased speed of the hard drive makes it ideal for applications that require fast data access, such as databases, virtualization, and content delivery networks.

Buffer Size

The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" has a 128 megabyte (MB) buffer size, which is a type of temporary storage used to improve data transfer speeds. The buffer acts as a cache between the hard drive and the system's memory, allowing frequently accessed data to be stored in the buffer for faster access. The larger the buffer size, the more data can be stored in the cache, resulting in faster data access times.


The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" is compatible with a wide range of Dell servers, including the Dell PowerEdge, PowerVault, and Precision families. It is also compatible with other servers that support SATA hard drives. Before purchasing the hard drive, it is important to ensure that the server is compatible with SATA hard drives and has an available drive bay to install the hard drive.

Form Factor

The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" has a 3.5-inch form factor, which means it is designed to fit into standard-sized drive bays in servers and workstations. This makes it easy to install and replace, as it can be easily inserted into the drive bay without requiring any additional hardware or adapters.

Data Transfer Rate

The "--Dell 4256W 2TB 7.2K RPM 128MB Buffer 512N SATA-6GBPS Hard Drive" uses a Serial ATA (SATA) interface with a 6 gigabytes per second (GBPS) data transfer rate. This interface is commonly used in desktop and server-level storage environments, as it offers higher data transfer rates and improved scalability compared to traditional IDE interfaces.

Main Information about the Dell 4256W

  • Manufacturer: Dell
  • Part Number or SKU# 4256W
  • Device Type: Hard Disk Drive (HDD)
  • SSD -Type: SATA 6 GBPS


  • Type : Hard Drive - Internal
  • Capacity : 2TB
  • Form Factor : 3.5
  • Interface : SATA-6GBPS
  • Cache : 128MB
  • Bytes Per Sector : 512N
  • Spin Speed (Rpm) : 7200 RPM
  • Interfaces : 1 X SATA
  • Compatible Bays : 1 X Internal - 3.5

Dimension & Weight

  • Width: 4 Inch
  • Depth: 5.8 Inch
  • Height: 1 Inch
  • Weight: 1.52 Lbs

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 Sealed
Warranty provided by ALLHDD.COM:
90 Days

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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.