Best Internal Hard Drives of 2025

Mike Davis Avatar
Mike Davis
Last Updated: Jan 13, 2025

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Internal hard drives are an essential component of any computer system, providing storage space for operating systems, applications, and personal files. These drives are typically installed inside the computer's case and are available in a variety of sizes and speeds. They come in two main types: hard disk drives (HDD) and solid-state drives (SSD). HDDs are the traditional type of internal hard drive, using spinning disks to store data. SSDs, on the other hand, use flash memory technology and have no moving parts, which makes them faster and more reliable. With the increasing demand for storage space, internal hard drives continue to evolve, providing larger capacities and faster speeds to meet the needs of modern computing.

At a Glance: Our Top Picks

Seagate BarraCuda 8TB HDD Cover #TOP 1
Seagate BarraCuda 8TB HDD
ftb score rating icon 9.8
Seagate IronWolf 4TB NAS Drive Cover #TOP 2
Seagate IronWolf 4TB NAS Drive
ftb score rating icon 9.7
HGST - WD Ultrastar DC HC520 HDD Cover #TOP 3
HGST - WD Ultrastar DC HC520 HDD
ftb score rating icon 9.5

Top 10 Internal Hard Drives

Seagate BarraCuda 8TB HDD

ST8000DM004/ST800DMZ04
3.5 Inch
Seagate BarraCuda 8TB HDD Cover
Seagate BarraCuda 8TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST8000DMZ04/004)

The Seagate BarraCuda HDD offers a reliable storage solution for your computer needs. With its ample 8TB capacity, you can store a vast amount of files, from music and videos to photos and game data. Its fast performance, with a sustained transfer rate of 190MB/s, allows you to access your data quickly, enhancing your computing experience. Backed by 20 years of innovation, this hard drive ensures dependable technology that you can trust. Plus, the frustration-free packaging means you can get started right away, without the hassle of finding additional cables or boxes.

What We Like
Large storage capacity
Reliable brand reputation
Easy installation process
Good value for price
Relatively quiet operation
What We Don't Like
Performance not as fast as SSDs
Some noise during data access

Seagate IronWolf 4TB NAS Drive

ST4000VN006
Black
Seagate IronWolf 4TB NAS Drive Cover
Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006)

The Seagate IronWolf Drive is designed for multi-user NAS environments with up to 8-bays, offering exceptional performance. With high capacities reaching up to 16TB and a substantial cache of 256MB, you can store more data and access it faster. This drive is specifically built for NAS enclosures, minimizing wear and tear while reducing noise and vibration, ensuring a smoother operation. You can also easily track the health of your drive with the IronWolf Health Management system, which contributes to its long-lasting reliability, boasting a mean time between failures of 1 million hours.

What We Like
Excellent performance for NAS use
High storage capacity
Easy installation process
Quiet operation
Reliable for 24/7 usage
What We Don't Like
Occasional noise during operation
Some models may arrive faulty
#TOP 3

HGST - WD Ultrastar DC HC520 HDD

0F30144-cr
Silver
12 TB
HGST - WD Ultrastar DC HC520 HDD Cover
HGST - WD Ultrastar DC HC520 HDD | HUH721212ALE601 | 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch | ISE 512e | Helium Data Center Internal Hard Disk Drive (Renewed)

The HGST - WD Ultrastar DC HC520 HDD is an internal hard drive with a capacity of 12TB and 7.2K SATA 6Gb/s 256MB Cache. It is designed for big data storage applications such as cloud and hyperscale storage that require durability and security. The drive's field-proven helium design and dual safe firmware offers reliable updates, while its power efficiency makes it optimal for high-density data centers and centralized video surveillance. Additionally, the drive features instant secure erase (ISE) and is endurance optimized.

What We Like
Fast replacement process
Good performance and stats
Cost-effective compared to new
Well-packaged and looks new
Easy installation
What We Don't Like
Potential hidden issues
High power-on hours noted
#TOP 4

WD 10TB Red Plus NAS Internal Hard Drive

WD101EFBX
10TB
WD 10TB Red Plus NAS Internal Hard Drive Cover
Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD101EFBX

The Western Digital 10TB WD Red Plus NAS Internal Hard Drive offers capacities ranging from 1-14TB and supports up to 8 bays, making it ideal for small or medium businesses in a 24x7 environment. With a 7200 RPM, SATA 6 Gb/s, CMR, and 256 MB Cache, this hard drive provides a high workload rate of up to 180 TB/yr. It also features NASware firmware for compatibility with NAS systems.

What We Like
High storage capacity
Reliable performance
Quiet operation
User-friendly setup
Good warranty period
What We Don't Like
Slow RMA process
Incompatibility warnings during setup
#TOP 5

Western Digital 8TB HDD

WD80EAAZ
Blue
Western Digital 8TB HDD Cover
Western Digital 8TB WD Blue PC Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD80EAAZ

The WD 8TB Internal Hard Drive is designed for reliable everyday computing, ensuring that your data is safe and easily accessible. With Western Digital's reputation for quality, you can trust this drive to perform consistently. It comes with free Acronis True Image WD Edition cloning software, making it easy for you to back up and migrate your data without hassle. With a generous storage capacity of up to 8TB, you have ample space for all your files, whether for work or personal use. Plus, it includes a 2-year limited warranty for added peace of mind.

What We Like
Improved performance
Easy installation
Durable design
Energy efficient
Good compatibility
What We Don't Like
Some noise at startup
#TOP 6

Seagate Skyhawk 4TB HDD

ST4000VXZ16
multi-color
Seagate Skyhawk 4TB HDD Cover
Seagate Skyhawk 4TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 64MB Cache for DVR NVR Security Camera System with Drive Health Management and in-House Rescue Services (ST4000VXZ16/016)

The Seagate Skyhawk HDD is designed specifically for video storage in DVR and NVR security camera systems. With the ability to handle up to 180TB of data per year, you can run 64 HD cameras simultaneously without losing any footage. Its built-in RV sensors ensure that the drive performs well even in multi-bay setups, giving you flexibility as your storage needs grow. Additionally, lower power usage means less heat generation, which enhances reliability. You can also monitor your drive's health easily, ensuring your data remains safe and secure.

What We Like
High storage capacity
Seamless plug & play replacement
Reliable performance
Good value for money
Works well with security systems
What We Don't Like
May run warm
Occasional noise
#TOP 7

Seagate 12TB IronWolf NAS Hard Drive

ST12000VN0007
Black
12TB
Seagate 12TB IronWolf NAS Hard Drive Cover
Seagate (Recertified) 12TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers, Personal Cloud Storage (ST12000VN0007)

The Seagate IronWolf 12TB Drive is designed for high-performance storage needs. With impressive spinning speeds of up to 7200 RPM, it allows you to access your data quickly, which is perfect for managing large files or running applications. Its compatibility with 1- to 8-bay NAS servers means you can easily integrate it into your existing setup for personal cloud storage. Additionally, this drive supports data rates up to 214MB/s, ensuring smooth data transfers. Whether you’re storing media or backing up important files, this drive helps you keep everything organized and accessible.

What We Like
Quick shipment
Good storage capacity
Works well with NAS
Quiet operation
Affordable pricing
What We Don't Like
Not on compatibility list
Some noise reported
#TOP 8

Western Digital 8TB WD_Black HDD

WD8002FZBX
Western Digital 8TB WD_Black HDD Cover
Western Digital 8TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8002FZBX

The WD_Black 8TB Hard Drive is designed for gamers, system builders, and creative professionals who need reliable performance. With a high-speed 7200 RPM, it offers quick access to your files, enhancing your gaming and creative experiences. The SATA 6 Gb/s interface ensures fast data transfer, allowing you to load games and applications without delays. Additionally, the 256 MB cache helps improve overall efficiency by storing frequently accessed data for quicker retrieval. Western Digital's StableTrac and Dynamic Cache Technology further enhance the drive's reliability and performance, giving you peace of mind as you work or play.

What We Like
Reliable performance
Fast read/write speeds
Durable over time
Good value for money
What We Don't Like
Loud during heavy use
Uncertain long-term reliability
#TOP 9

HGST Ultrastar He12 12TB HDD

HUH721212ALE601/CR
Silver
12TB
HGST Ultrastar He12 12TB HDD Cover
HGST Ultrastar He12 | HUH721212ALE601 | 0F27454 | 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" | 512E | BitLocker Drive Encryption | Power Disable Feature | Helium Platform Hard Disk Drive (Renewed)

The HGST 12TB Hard Drive is a robust solution designed for demanding environments, such as data centers. With a significant 12TB storage capacity and a fast 7200 RPM speed, it ensures quick access to your data around the clock. The 256MB cache enhances performance, making it ideal for multitasking and heavy workloads. Plus, its 2.5 million-hour mean time between failures (MTBF) rating guarantees reliability, allowing you to trust it for long-term use. Whether you need it for a server, NAS, or surveillance system, this hard drive supports a variety of applications, making it a versatile choice for your storage needs.

What We Like
Reliable performance
High-density storage
Seamless integration
Fast data transfer rates
Good for backup
What We Don't Like
Some noise during operation
Potential sleep mode issues

Seagate BarraCuda Pro 12TB HDD

ST12000DM0007-cr
12 TB
Seagate BarraCuda Pro 12TB HDD Cover
Seagate BarraCuda Pro 12TB Internal Hard Drive Performance HDD - 3.5 Inch SATA 6 Gb/s 7200 RPM 256MB Cache for Desktop Computer (ST12000DM0007) (Renewed)

The Seagate BarraCuda Pro is designed to handle large projects and gaming needs with its impressive 12TB storage capacity. You can trust this drive, backed by over 20 years of innovation, to keep your data safe and accessible. It’s optimized for creative applications, meaning you’ll experience faster performance and greater reliability compared to standard drives. Plus, it’s built for 24/7 use, ensuring you can always access your files whenever you need them without any hassle.

What We Like
Easy installation and setup
Good performance for large files
Affordable price for refurbished drives
Quiet operation
Reliable in long-term testing
What We Don't Like
Not exactly 12TB usable
Some drives may click
Best Internal Hard Drives Feature Image

Finding the Best Internal Hard Drives for You

Buying a hard drive is a very common element while upgrading your computer system. You need to focus on a few basic features to select a product of your need. Complex drive purchase is not a complicated process if you search for good internet. Make sure to check some recommended sites or brands for the shopping.

For your better understanding, we are providing you with some key factors that you'll need to consider before buying the internal hard drive. Just follow this guide, and you don't have to worry about ordering the wrong hard drive.

Factors to consider before buying Internal Hard Drives

Hard Disk Drive or Solid State Drive

The 1st consideration before buying the internal hard drive is the selection between SSD and HDDs. Both have some general features but few exceptions. SSD uses flash memory, while HDDs use spinning metal disks for storage. You can purchase HDD within a limited budget with lasting data storage. The SDD is a better option in systems where the operating system holds a load of frequently accessed programs and files. Performance & Speed are the key benefits of an SSD over an HDD.

Sizes and Interfaces

After selecting one from SDD and HDD, the next thing is the size & interference of the drive. Here you have two choices: a 2.5-inch drive with 5-10TB maximum capacity and a 3.5-inch drive with 10-20TB maximum capacity. HDD comes in a larger size because of its spinning nature; the larger the size greater the data storage. Data storage capacity is becoming important because of the large-sized operating systems, games, programs, and multimedia. So, Make sure to look for this key factor while purchasing a disk.

Data Transfer Speeds

The data transfer speed of the disk determines its performance. It is measured in revolutions per minute (RPM). Higher the RPM, the greater the data accessing, faster the data transfer from the drive to the device. You can decide the RPM of drive based on your need. Usually, for sensitive storage applications, 10,000~15,000 RPM is preferable. For the personal computers, 7200 RPM is also well-served and enough.

Cache

Cache states for the high-speed random access memory (RAM) incorporated on the PCB of a hard drive. It is used as a barrier between hard drive, memory, and CPU. 2MB, 8MB, and 16MB are presently standard options cache sizes for both 2.5-inch & 3.5-inch drives. A higher leveled cache means better performance.

Benefits of Internal Hard Drives

Though internal & external hard drives are alike in many ways, some significant features divide them into two different categories. Depending on your needs, it is very important to carefully decide one among both. Here we listed some key benefits of internal hard drives, so let's have a look:

  • Internal drives provide greater storage capacity for bulky data files.
  • Internal drives are present within the computer system, so less effort is required for scheduled backups.
  • Internal hard drives are budget-friendly as compared with other media storage forms.
  • Internal drives are easy to upgrade and replace, making the computer system smooth.
  • In the case of an internal storage drive, data is always present in the computer, which minimizes our data transfer tension.

Frequently Ask Questions (FAQs)

What are the five types of internal hard drives?

Currently, internal hard drives are divided into five major categories including:

  • NVM Express
  • Serial ATA(SATA)
  • Solid State Drives (SSD)
  • Small Computer System Interface (SCSI)
  • Parallel Advanced Technology Attachment (PATA)

What are the internal drives of the computer?

The internal hard drive is a data storage device in the computer system. It usually consists of the operating system, pre-installed software applications, and other files. In many computers, these hard drives provide greater data storage.

Conclusion

When selecting which storage is best for your computer, make sure to read a proper guideline for that. Here we provide you with a complete list based on all key features to make your shopping easy.

Frequently Asked Questions (FAQs)

1. What is the difference between SSD and internal hard drive?

The main difference between an SSD and an internal hard drive (HDD) lies in their technology and performance. SSDs, unlike HDDs, have no moving parts, making them lighter, more power-efficient, and less prone to damage. They store data electronically on cells, resulting in faster data access. On the other hand, HDDs are more affordable and can offer greater storage capacity. However, they consume more power, generate noise, and have slower read and write speeds compared to SSDs.

2. What is a disadvantage of internal hard drives?

Internal hard drives (HDDs) have a few disadvantages. They can be damaged if the disk surface is compromised. HDDs also consume more power, resulting in higher energy consumption. Additionally, they tend to be noisy due to the spinning of the disks. In terms of performance, HDDs have slower read and write speeds compared to RAM.

3. Which is better SSD or HDD?

SSDs are generally considered better than HDDs due to their advantages. SSDs are lighter, consume less power, and have no moving parts, resulting in less vibration. They are also more durable and can survive accidental drops better. Additionally, SSDs offer faster data access due to their electronic storage on 'cells'. However, HDDs are more affordable and may be preferred for larger storage capacities or easier data recovery in case of damage.

4. Which lasts longer internal HDD or external HDD?

Internal hard drives (HDDs) typically last longer than external HDDs. Internal drives are better protected from stress or environmental factors as they are not regularly disconnected and are less exposed to human errors or damage. This means that internal HDDs have a longer lifespan compared to external HDDs.

5. Is it better to get an SSD or HDD?

When choosing between an SSD and an HDD, it depends on your specific needs. SSDs are faster, more durable, compact, quieter, and consume less energy. They are ideal for users who prioritize speed and performance. On the other hand, HDDs are more affordable and may offer larger storage capacities. If price is not a determining factor, SSDs are generally considered the better option, as modern SSDs are as reliable as HDDs.

6. Is a 256GB SSD better than a 1TB hard drive?

A 256GB SSD is better than a 1TB hard drive if you prioritize faster write and read speeds. However, the trade-off is that the storage space will be significantly smaller. If you require more storage capacity, such as for gaming or video editing, a 1TB hard drive may be more suitable. The advantage of the 1TB HDD is its larger storage space.

7. How long will an internal hard drive last?

Internal hard drives (HDDs) tend to last between 3 to 5 years. HDDs have more moving parts and are less durable compared to solid-state drives (SSDs). Therefore, they have a higher likelihood of failure over time. It is important to regularly back up important data and consider replacing an HDD after several years of use.

8. How often do internal hard drives fail?

The lifespan of internal hard drives (HDDs) can vary, but studies have shown that around 90% of HDDs survive for three years and 80% for four years. However, the failure rates can vary across different brands. Regular backups and monitoring the health of your HDD can help prevent data loss in case of failure.

Editor's Notes

During our internal hard drive research, we found 24 internal hard drive products and shortlisted 10 quality products. We collected and analyzed 781,521 customer reviews through our big data system to write the internal hard drives list. We found that most customers choose internal hard drives with an average price of $193.92.

The internal hard drives are available for purchase. We have researched hundreds of brands and picked the top brands of internal hard drives, including Seagate, HGST, Western Digital. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Mike Davis Avatar

Mike Davis is a professionally trained electrician with six years of working experience in the electronics industry. He has written an array of web and mobile-based articles for e-magazines and blogs. He loves trying out some novel and popular gadgets and his expertise is in the areas of electronics and computers which is built over many years of working and personal experiences.

Internal Hard Drives Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Seagate Seagate HGST Western Digital Western Digital Seagate Seagate Western Digital HGST Seagate
Digital Storage Capacity 8 TB 4 TB 12000 GB 10 TB 8 TB 4 TB 12 TB 8 TB 12 TB 12000 GB
Hard Disk Interface Serial ATA eSATA Serial ATA-600 Serial ATA-600 Serial ATA-600 eSATA Unknown Serial ATA-600 Serial ATA-600 Serial ATA
Connectivity Technology SATA SATA SATA SATA SATA SATA SATA SATA SATA SATA
Special Feature Data Recovery Service Desktop Portable Data Recovery Service Free Acronis True Image WD Edition cloning software Portable Portable Purpose built for Gaming Backward Compatible Portable
Hard Disk Form Factor 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches 3.5 Inches
Hard Disk Description Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk Mechanical Hard Disk
Compatible Devices Gaming Console, Desktop Desktop Desktop Desktop Desktop Camera Server PC, Mac helium Desktop
Installation Type Internal Hard Drive Dashboard Mount Internal Hard Drive Internal Hard Drive Internal Hard Drive Internal Hard Drive Internal Hard Drive Internal Hard Drive Internal Hard Drive Internal Hard Drive
Color 3.5 Inch Black Silver Red Blue multi-color Black - Silver -
FTB Score
ftb score rating icon 9.8
ftb score rating icon 9.7
ftb score rating icon 9.5
ftb score rating icon 9.5
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.2
ftb score rating icon 9.2
ftb score rating icon 9.1
ftb score rating icon 8.9
Where to Buy