If you need a large quantity of 0B35915 product - call us at +1 (718) 766 5269 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.

0B35915 HGST Ultrastar DC HC310 7K6 4TB 7.2K RPM SAS-12GBPS New

Availability: In Stock
Part Number#: 0B35915
List Price was: $524.61
Your Price:
You Save: $351.49 (67% off)

3% Discount on Checkout

Short Description:
0B35915 Ultrastar Direct Current (DC) HC310 7K6 4TB (Terabytes) 7200 Revolutions Per Minute (RPM) Serial-Attached SCSI (SAS) 12GBPS (Gigabytes per Second) 256 Megabyte (MB) Internal Hard Drive | Made by HGST | Brand New 3 Years Warranty
Brand Warranty:
5 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days


The HGST Ultrastar DC HC310 is connected to the host system using a SAS-12GBPS interface. This interface provides a high-speed data transfer rate of up to 12 Gbps, allowing for fast data transfer speeds and improved overall performance. The drive is typically connected to the host system using a SAS-12GBPS host bus adapter (HBA) or RAID controller.

It's worth noting that the SAS interface is a point-to-point connection, meaning that each drive requires a dedicated SAS controller. This is in contrast to SATA interface which allows multiple drives to be connected to a single controller.

Before installing the drive, it is important to check for compatibility with the host system and to consult the documentation or contact the vendor for more information on connectivity. It is also recommended to check the technical specifications of the host system to ensure that it has the necessary SAS-12GBPS interface and power connectors.

Additionally, it is recommended to use the latest firmware version of the SAS controller and the drive to take advantage of the latest features and bug fixes.

Product Overview

The 0B35915 HGST Ultrastar DC HC310 7K6 4TB 7.2K RPM SAS-12GBPS 256MB Internal Hard Drive is a high-performance, high-capacity hard drive designed for use in data centers and other demanding enterprise environments. It features a SAS-12GBps interface, 7200 RPM spindle speed, and a large 256MB cache for fast data access and transfer.

With a storage capacity of 4TB, this hard drive can store large amounts of data, making it ideal for use in data backup and archiving, cloud storage, and other data-intensive applications. Additionally, the hard drive is built to meet the needs of data center environments, with features such as vibration protection and secure erase for data security.

Enterprise Environments

The HGST Ultrastar DC HC310 offers several benefits that make it an ideal choice for data center and enterprise environments, including:

  • High performance: With a 7200 RPM spindle speed, SAS-12GBPS interface and a 256MB cache, the drive provides fast data transfer speeds and improved overall performance.
  • Reliability: The drive is designed for 24x7x365 operation and features advanced format technology, error recovery control, and a rotational vibration sensor to ensure maximum uptime and data integrity.
  • Large storage capacity: With a storage capacity of 4TB, the drive provides ample space for storing large amounts of data.
  • Energy efficiency: The Ultrastar DC HC310 is designed to consume less power than traditional hard drives, making it more energy-efficient and cost-effective.
  • Secure erase: The drive is equipped with a secure erase feature that allows for easy and fast data sanitization, which is essential for data security and compliance.
  • High availability: The drive is designed for 24x7x365 operation, ensuring maximum uptime and reliability for enterprise environments.

General Information:

  • Brand : HGST
  • Part : 0B35915
  • Type: Hard Disk Drive (HDD)
  • Sub-Type: SAS-12GBPS
  • RPM: 4TB-7.2K
  • Product Line : Ultrastar
  • Product Series : DC HC310 (7K6)
  • Product Name : Ultrastar DC HC310 (7K6) 4TB Hard Drive.

Applications / Environments:

  • Distributed File Systems, Like Apache Hadoop®, To Support Big Data Analytics
  • Direct & Network Attached Storage (Das & Nas)
  • Raid Arrays
  • Legacy Applications Requiring 512n Format (4TB)

Key Features:

  • Storage Capacity : 4 TB
  • Interface : SAS-12GBPS
  • Drive Dimensions : 3.5 Inch
  • Load/Unload Cycles : 600000
  • Mtbf : 2 Million Hours


  • Interface Transfer Rate (Maximum) : 1200 MBPS
  • Sustained Transfer Rate (Typical) : 255 MBPS
  • Rotational Speed : 7.2K RPM
  • Buffer : 256 MB
  • Average Latency : 4.16 MS
  • Seek Time (Read, Ms, Typical) : 8.0 (Read) / 8.6 (Write)

The Serial Attached SCSI (SAS) hard drives have become increasingly popular for their increasing use in high-end workstations and servers. These drives are employed in consumer desktops and modern servers for their speed and reliability. Enterprises have made the SAS hard drives their de-facto standard. Now, the 12Gbps speed throws the usefulness of these drives up a notch.

Most professional hosting providers now use SAS 12Gbps hard drives for data production. These drives have proven useful in high input/output operations and critical website functions. Users trust these drives because there is no risk of data loss, corruption, or downtime.

Faster Throughput

SAS 12Gbps drives read, write, and process data within split seconds. The latest 12Gbps disks use the latest RAID hardware technology to offer faster data transfer and recovery rates. They are perfect for sequential data, high workloads, and random IOPS alike.

This function allows them to be best suited for servers that have 100 percent duty cycles. They do not only work with desktops and PCs, but they can read/write data 24/7.

Higher Performance

SAS 12Gbps HDDs have received the utmost attention in the market as a result of their high performance. These performance benefits allow it to be useful for a wide variety of applications. For instance, a SAS 12Gbps connection can support up to four wide lanes per connection.

Connecting JBOD with these SAS drives can support up to 1200MB/s. These high-performance drives do not only help handle large workloads; they also offer cost-effective expansion to an already robust system.

Also, each 12Gbps high-performance SAS drive can offer users a rotational speed of up to 15000 rpm.

They provide a great bandwidth enough to perform efficiently. The robust performance of SAS 12Gbps drives clearly a worthy investment for improved performance of servers and desktops. They provide very large amounts of storage options and are a cost-effective choice for users.

Utmost Flexibility

Flexibility is one of the best benefits of SAS 12Gbps drives. These drives have configured flexibility, which allows them to work perfectly with several devices without modification or changes. Many of them feature a Universal Serial controller for seamless system support.

SAS 12Gbps hard drives can also be partitioned into a storage pool and assigned to servers for work-intensive applications. They are a perfect fit for server systems, including reservation systems, medical imaging, and more!

Only this range of SAS hard drives can provide users with the best worlds of flexibility. This way, allows them to support use with other drives.

Increased Availability

12Gbps SAS-based storage systems have the benefit of dual-port capability. This allows them to provide a redundant path to the drives in case of controller failover. These drives also operate on separate point-to-point connections. That way, it is rare for drive connection loss to affect them.

SAS 12Gbps HDDs are built to handle the rigours of heavy workloads and enterprise use. They also safeguard data integrity, thanks to their ability to comprehensively verify data and correct errors.

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.