Dell  400-AUTO 2.4TB 10K RPM SAS-12GBPS
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400-AUTO Dell 2.4TB 10K RPM SAS-12GBPS 512E 256MB SFF Hard New

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Part Number#: 400-AUTO
List Price was: $387.88
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New Sealed

Short Description:
400-AUTO Dell 2.4 Terabytes (TB) 10000 Revolutions Per Minute (RPM) Serial-Attached SCSI (SAS) 12 Gigabits per second (GBPS) 512N 2.5Inch Small Form Factor (SFF) Hot-plug Hard Drive with Tray for Server | Made by Dell | Brand New 2 Years Warranty
Product Condition:
New Sealed
Warranty provided by ALLHDD.COM:
90 Days

SAS Interface and Data Transfer Rate

SAS (Serial Attached SCSI) is a type of interface used to connect storage devices, such as hard drives and solid state drives, to a computer or server. It uses a point-to-point topology, where each device has its own dedicated connection to the host, rather than sharing a common bus like with SATA. This allows for greater scalability and performance.

The SAS interface uses the SCSI (Small Computer System Interface) standard for data transfer. SCSI is a set of commands and protocols that allow for efficient communication between the host and the storage device. The SAS interface also supports advanced features such as multi-path and redundancy, which increase reliability and availability.

SAS data transfer rates, also known as the interface speed, are measured in Gbps (gigabits per second). The 400-AUTO Dell 2.4TB 10K RPM SAS-12GBPS 512E 256MB SFF Hard Drive has a SAS 12 Gbps interface, which allows for faster data transfer speeds and improved performance compared to previous versions such as SAS 6 Gbps and SAS 3 Gbps.

It's important to note that SAS hard drives can also be backwards compatible with SAS 3 Gbps and SAS 6 Gbps interfaces, but at the cost of performance. Additionally, the 512E technology allows the disk drive to be compatible with older servers that only support 512 bytes per sector.

Rotational Speed and Form Factor

Rotational speed, measured in revolutions per minute (RPM), refers to how fast the disk platters inside a hard drive spin. The faster the platters spin, the quicker data can be accessed. The 400-AUTO Dell 2.4TB 10K RPM SAS-12GBPS 512E 256MB SFF Hard Drive has a rotational speed of 10K RPM. This speed is considered "enterprise" and is faster than nearline drives with 7.2K RPM. This means that the hard drive will have faster data access and improved performance for applications that require fast data access such as transactional databases, large data sets and high-performance computing.

Form factor, on the other hand, refers to the physical size and shape of a hard drive. The Dell 2.4TB 10K RPM SAS-12GBPS 512E 256MB SFF Hard Drive has a "small form factor" (SFF) which means it is smaller than the large form factor (LFF) hard drive. The smaller size allows it to fit in servers with smaller drive bays. However, it also means that it can accommodate less disk platters which reduces storage capacity.

The SFF hard drive is typically used in environments where space is a concern, such as in servers with limited drive bays, or in applications where high-performance data access is required but storage capacity is not as critical. Additionally, the small form factor of SFF hard drives can also be useful in situations where multiple hard drives are installed in a single server, such as in a RAID configuration, where the smaller size allows for better cooling and airflow.

Reliability and MTBF

Reliability and MTBF (Mean Time Between Failures) are important considerations for hard drives, as they determine how long the drive can be expected to last and how often it may need to be replaced.

Reliability is a measure of how well a hard drive can withstand normal operating conditions and resist failure. Factors that affect reliability include the quality of the components, the design and construction of the drive, and the way the drive is used.

MTBF (Mean Time Between Failures) is a statistical measure that estimates the average time a hard drive will operate without failing. It is usually measured in hours and is based on the assumption that the hard drive will fail randomly over time. MTBF is calculated by taking the total number of hours of operation and dividing by the number of failures.

The 400-AUTO Dell 2.4TB 10K RPM SAS-12GBPS 512E 256MB SFF Hard Drive is designed to be a high-reliability hard drive with a high MTBF rating. The hard drive is built with high-quality components and undergoes rigorous testing to ensure that it can withstand normal operating conditions and resist failure. The MTBF rating for the Dell 2.4TB 10K RPM SAS-12GBPS 512E 256MB SFF Hard Drive is not specified by the manufacturer but it's expected to be high due to the enterprise-grade specifications and features of the drive.

It's worth noting that MTBF is an estimation and it's not a guarantee for the lifetime of the drive, and it's also important to note that the operating conditions, the workload and the way the drive is used can affect the reliability and MTBF.

Product Overview:

  • Manufacturer : Dell
  • Manufacturer Part Number : 400-AUTO
  • Product Type : Hard Disk Drive (HDD)
  • Sub- Product Type : SAS-12GBPS

Technical Information:

  • Storage Capacity: 2.4 TB
  • Form Factor : 2.5 Inch
  • Interface : SAS-12GBPS
  • Cache : 256 MB
  • Features : Advanced Format 512e


  • Rotational Speed : 10K RPM
  • External Transfer Rate : 1200 MBPS
  • Cache : 256 MB
  • Interfaces : 1 X SAS 12GB/S
  • Compatible Bays : 1 X Hot-swap - 2.5inch


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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.

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Shipping Options and Estimated Delivery Time

UPS Shipping Options:

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UPS Next Day Air® First Overnight - Early A.M
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UPS® First Overnight - Saturday
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FedEx Shipping Options:

FedEx Ground®
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*For residential delivery via FedEx Ground use FedEx Home Delivery®
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FedEx Express Saver®
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Available throughout all 50 states (except Hawaii and Alaska)

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FedEx Standard Overnight®
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Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
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Available throughout all 50 states

FedEx First Overnight®
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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.
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