Western Digital
Western Digital 0F17731-CR Ultrastar 3TB SATA HDD
★★★★★
3.5in
Enterprise-Class Storage Solution The HGST Ultrastar A7K4000 is a 3TB enterprise-class hard drive designed for high-capacity nearline environments. Operating at 7200 RPM with a SATA III 6.0Gb/s interface, it ensures reliable 24/7 operation. Built with robust mechanics and Rotational Vibration Saf...
$175.89*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.
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Overview
Enterprise-Class Storage Solution
The HGST Ultrastar A7K4000 is a 3TB enterprise-class hard drive designed for high-capacity nearline environments. Operating at 7200 RPM with a SATA III 6.0Gb/s interface, it ensures reliable 24/7 operation. Built with robust mechanics and Rotational Vibration Safeguard (RVS) technology, this hard drive is ideal for PC, Mac, RAID, NAS, and surveillance CCTV DVR systems.
Specifications:
- Hard Drive: 3 TB Raid
- Series: Ultrastar A7K4000
- Item Model Number: 0F17731-CR
- Hardware Platform: PC, Mac
- Item Weight: 0.01 ounces
- Product Dimensions: 5.8 x 4 x 1 inches
- Color: Silver
- Flash Memory Size: 3 TB
- Hard Drive Interface: Serial ATA-600
- Hard Drive Rotational Speed: 7200 RPM
- Digital Storage Capacity: 3000 GB
- Connectivity Technology: SATA
- Special Feature: Portable
- Hard Disk Form Factor: 3.5 Inches
- Hard Disk Description: Raid
- Compatible Devices: Desktop
- Installation Type: Internal Hard Drive
Key Features
3.5in 3TB Hard Drive, 7200RPM, 64MB Buffer Size, SATA III 6.0Gb,s, Designed for 24,7 reliable operation
Perfect for PC, Mac, RAID, NAS, Surveillance CCTV DVR
Passed Factory Diagnostic Software + RE-CERTIFIED by State-of-the-Art software - Full inSector-by-Sectorin test to ensure best HDD quality! ZERO Bad Sectors!
Package Quantity - 1
Specifications
Capacity
3TB
Form Factor
3.5 inches
Spindle Speed
7200RPM
Buffer Size
64MB
Interface
SATA III 6.0Gb/s
Reliability
Designed for 24/7 reliable operation
Certification
RE-CERTIFIED by State-of-the-Art software
Condition
ZERO Bad Sectors!
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Check on Amazon →Pros & Cons
👍 Pros
- Offers a generous 3TB storage capacity, suitable for extensive data storage including PC, Mac, RAID, NAS, and surveillance CCTV DVR applications.
- Designed for 24/7 reliable operation, making it ideal for continuous use in demanding environments.
- Features a 7200RPM spindle speed, providing fast data access and transfer rates for a traditional hard drive.
- Equipped with a 64MB buffer size, which enhances performance by efficiently handling data requests.
- Utilizes a SATA III 6.0Gb/s interface, ensuring high-speed connectivity with modern systems.
👎 Cons
- As a Hard Disk Drive (HDD), its performance will be slower than Solid State Drives (SSDs) for tasks requiring very fast boot times or application loading.
- The 3.5-inch form factor may not be compatible with smaller systems or laptops designed for 2.5-inch drives.
- While "RE-CERTIFIED by State-of-the-Art software" suggests quality assurance, it is not a brand-new drive, which might be a consideration for some buyers.
- The package quantity is only 1, so multiple drives would need to be purchased separately for RAID or NAS setups.
- The "ZERO Bad Sectors!" claim pertains to its re-certified status and not necessarily the drive's condition over an extended period of new use.
Frequently Asked Questions
What is the storage capacity of this Western Digital Ultrastar HDD?
This hard drive provides a substantial 3TB of storage capacity.
Is this hard drive suitable for continuous operation?
Yes, it is specifically designed for 24/7 reliable operation, making it ideal for systems requiring constant use like surveillance or NAS.
What are the speed specifications of this HDD?
The drive operates at a 7200RPM spindle speed and features a 64MB buffer size, connecting via a SATA III 6.0Gb/s interface.
What applications is this HDD recommended for?
It is perfect for PC, Mac, RAID, NAS, and surveillance CCTV DVR systems due to its capacity and reliability features.
Is this a new hard drive?
The drive has passed factory diagnostic software and has been re-certified by state-of-the-art software to ensure quality, indicating it is not new but has undergone rigorous testing.
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