Western Digital HUH721212AL4201 12TB Hard Disk
If you need a large quantity of HUH721212AL4201 product - call us at +1 (347) 470 6982 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.

HUH721212AL4201 Western Digital 12TB 7.2K RPM SAS 12GBPS Refurbished

Availability: In Stock
Part Number#: HUH721212AL4201
List Price was: $757.58
Your Price:
You Save: $507.58 (67% off)

5% Discount on Checkout


Short Description:
HUH721212AL4201 12 Terabytes (TB) 7200 Revolutions Per Minute (RPM) Serial-Attached SCSI (SAS) 12 Gigabytes Per Second (GBPS) 256 Megabyte (MB) 3.5 Inch Internal Hard Disk Drive for Server | Made by Western Digital | Refurbished
Western Digital
Product Condition:
Warranty provided by ALLHDD.COM:
30 Days


The reliability of the Western Digital HUH721212AL4201 hard drive can be determined by looking at its mean time between failures (MTBF) rating. The MTBF rating is an estimate of how long the drive can operate before it fails. A higher MTBF rating indicates a more reliable drive. This particular hard drive has a MTBF rating of 2 million hours, which is considered to be very high and indicates a high level of reliability.

Additionally, this hard drive also has a number of features that contribute to its reliability. The SAS interface provides faster data transfer speeds and improved error detection and correction. The large buffer size of 256MB allows for improved performance and data protection. The drive also has vibration protection and is built to operate under high temperatures.

It's worth noting that hard drives are mechanical devices and are subject to wear and tear over time. Even with high MTBF rating, an hard drive can fail at any time, thus it's recommended to use them in RAID configuration or with a backup system in place to minimize the risk of data loss.


The Western Digital HUH721212AL4201 is a 12 terabyte (TB) hard drive with a rotation speed of 7200 revolutions per minute (RPM). It is designed for use in enterprise environments and it's a high-performance hard drive.

It has a SAS (Serial Attached SCSI) interface, which is a faster and more reliable interface compared to SATA. SAS supports data transfer rates of up to 12 gigabits per second (GB/s) and also provides improved error detection and correction. This makes it suitable for use in high-availability systems and data centers.

The drive has a large buffer size of 256 megabytes (MB), which is used to temporarily store data before it is written to the drive's platters. This improves the drive's performance by allowing it to handle more data at once and reduces the chances of data loss.

The hard drive also has vibration protection and is built to operate under high temperatures. This makes it suitable for use in environments where there may be vibration or high temperatures, such as in data centers or other enterprise environments.

It's a 3.5 inches form factor, which is the standard size for most internal hard drives. It's designed to be used in servers, storage arrays and other types of enterprise-level storage systems.


The Western Digital HUH721212AL4201 hard drive has a SAS (Serial Attached SCSI) interface. SAS is a high-speed and high-performance interface used for connecting storage devices to a computer or server. It is commonly used in enterprise-level environments, such as data centers, and is considered to be more reliable and faster than SATA (Serial ATA) interfaces.

SAS supports data transfer rates of up to 12 gigabits per second (GB/s), which is significantly faster than SATA's maximum data transfer rate of 6 GB/s. SAS also provides improved error detection and correction, which helps to ensure data integrity and reduces the chances of data loss.

SAS also supports multiplexing, which allows multiple devices to share a single SAS port. This allows for more efficient use of server resources and can help to reduce costs.

Additionally, SAS interfaces also support hot-swapping, which allows you to replace a failed drive without shutting down the system, allowing for minimal downtime.

General Information about this Western Digital HUH721212AL4201

  • Brand Name: Western Digital
  • Model Number or SKU# HUH721212AL4201
  • Product Line: Ultrastar
  • Product Name: Ultrastar Dc Hc520 12TB Enterprise Hard Drive

Technical Information for 12TB Hard Drive

  • Storage Capacity: 12 TB
  • Enclosure: Internal
  • Product Series: Ultrastar Dc Hc520
  • Max. Areal Density: 864 Gbits/Sq. In
  • Interface: SAS 12GBPS
  • Drive Dimensions: 3.5 Inch
  • Mtbf: 2.5 Million Hours
  • Interface Transfer Rate: 1200 MBPS
  • Sustained Transfer Rate: 243 MBPS (Read), 255 MBPS (Write)
  • Seek Time (Read, Typical): 8.0 Ms
  • Seek Time (Write, Typical): 8.6 Ms
  • Average Latency: 4.16 Ms
  • Buffer: 256 MB
  • Rotational Speed: 7200 RPM

Dimension and Weight of SAS 12GBPS Hard Disk

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


  • Enterprise And Data Center Applications Where Capacity Density, Power Efficiency And Reliability Are Paramount
  • Cloud & Hyperscale Storage
  • Massive Scale-Out (Mso), High-Density Data Centers
  • Distributed File Systems
  • Bulk Storage Using Object Storage Solutions Like Ceph™ And Openstack Swift
  • Primary And Secondary Storage For Hadoop® To Support Big Data Analytics
  • Centralized Video Surveillance
  • Ideal For All Mainstream Enterprise Capacity Applications

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.

Western Digital
Product Condition:
Warranty provided by ALLHDD.COM:
30 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

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.