Best SAS Internal Hard Drives of 2026

Mike Davis Avatar
Mike Davis
Last Updated: Jan 11, 2026

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SAS Internal Hard Drives are high-performance storage devices designed for enterprise-level servers and data centers. These hard drives use the Serial Attached SCSI (SAS) interface, which provides faster data transfer rates and improved reliability compared to traditional SATA drives. SAS drives are available in various capacities and speeds, ranging from 10K to 15K RPM, and can handle heavy workloads and demanding applications. They are also hot-swappable, allowing for easy replacement and maintenance without shutting down the entire system. SAS Internal Hard Drives are ideal for businesses that require fast and reliable storage solutions for their mission-critical data.

At a Glance: Our Top Picks

Seagate Exos X24 16TB Enterprise Internal Hard Drive HDD - 6GB/s SAS 7200RPM 2.5M MTBF Cover #TOP 1
Seagate Exos X24 16TB Enterprise Internal Hard Drive HDD - 6GB/s SAS 7200RPM 2.5M MTBF
ftb score rating icon 9.9
Seagate BarraCuda 8TB HDD Cover #TOP 2
Seagate BarraCuda 8TB HDD
ftb score rating icon 9.8
Seagate IronWolf 8TB NAS Internal Hard Drive Cover #TOP 3
Seagate IronWolf 8TB NAS Internal Hard Drive
ftb score rating icon 9.6

Top 10 SAS Internal Hard Drives

#TOP 1

Seagate Exos X24 16TB Enterprise Internal Hard Drive HDD - 6GB/s SAS 7200RPM 2.5M MTBF

ST16000NM002H
EXOX X24
16TB
Seagate Exos X24 16TB Enterprise Internal Hard Drive HDD - 6GB/s SAS 7200RPM 2.5M MTBF Cover
Seagate Exos X24 16TB Enterprise Internal Hard Drive HDD - 6GB/s SAS 7200RPM 2.5M MTBF (ST16000NM002H)

Features
EFFICIENT: Get Consistent Performance With Low Latency And Repeatable Response Times With Enhanced Caching
SCALABLE: Run Big Data Applications To Meet Hyperscale Demands
RELIABLE: Enjoy Extended Reliability With 2.5M-Hour MTBF And 5-Year Limited Warranty
HIGH CAPACITY: Support Data Analytics Capabilities And Other Dense Architectures For Highest Rack-Space Efficiency
COST EFFECTIVE: Optimize TCO With The Lowest Cost Per Terabyte

Seagate BarraCuda 8TB HDD

ST8000DM004/ST800DMZ04
Seagate BarraCuda 8TB HDD Cover
Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB 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 performance
Easy installation
Good value for price
Quiet operation

Seagate IronWolf 8TB NAS Internal Hard Drive

ST8000VNZ04/N004
Seagate IronWolf 8TB NAS Internal Hard Drive Cover
Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004)

The Seagate IronWolf 8TB NAS Internal Hard Drive is perfect for multi-user NAS environments that demand high-performance. With 8TB storage capacity and up to 256MB cache, this NAS-optimized hard drive is purpose-built for NAS enclosures, providing less wear and tear, improved file-sharing performance, and no lags or downtime. Additionally, the integrated IronWolf Health Management system helps you monitor the health of drives and ensures long-term reliability with an MTBF of 1M hours.

What We Like
Quiet operation
Reliable performance
Fast transfer speeds
Easy installation
Great value
#TOP 4

Western Digital WD Red Plus 10TB NAS HDD

WD100EFGX-SPCPLN0
10TB
Western Digital WD Red Plus 10TB NAS HDD Cover
Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD100EFGX

The Western Digital NAS Drive is designed to handle demanding storage needs with capacities from 1TB up to 14TB, making it easy for you to choose the right size for your business or personal NAS setup. It supports fast data transfers at 6Gbps, which means you can move large files quickly and efficiently. This drive is built to handle a heavy workload of up to 180TB per year, ensuring reliable performance even under constant use. Plus, it comes with NASware firmware to ensure compatibility and smooth operation in NAS systems, giving you peace of mind that your data storage will run smoothly and reliably.

What We Like
Reliable 24/7 operation
Optimized for NAS/RAID
Time Limited Error Recovery
Low noise and temperature
Better small file performance
#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
Reliable long-term performance
Quiet and cool operation
Easy installation and setup
Fast file transfer speed
Large storage capacity
#TOP 6

Seagate Skyhawk 4TB HDD

ST4000VXZ16
SURVEILLANCE
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
Excellent reliability
Fast performance
Optimized for surveillance
Easy installation
Great value for price
#TOP 7

WD 2TB WD Purple Surveillance Internal Hard Drive

WD23PURZ-SPC5HY0
Purple
WD 2TB WD Purple Surveillance Internal Hard Drive Cover
Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD23PURZ

The WD Purple Surveillance HDD is a reliable internal hard drive designed specifically for mainstream surveillance systems. It features WD AllFrame technology, which optimizes write-intensive, low bit-rate, and high stream-count workloads commonly found in surveillance applications. With a workload rate of up to 180 TB/yr, this hard drive can handle the demands of continuous recording. It also supports up to 16 bays, making it suitable for larger surveillance setups. Additionally, the tarnish-resistant components ensure durability and longevity, especially for capacities of 3TB and higher. With the WD Purple Surveillance HDD, you can trust that your surveillance system will have the storage capacity and performance it needs to capture and store footage reliably.

What We Like
Optimized for surveillance workloads
Supports up to 16 bays
High workload rate of up to 180 TB/yr
#TOP 8

Western Digital 8TB WD_Black HDD

WD
WD8002FZBX
Western Digital 8TB WD_Black HDD Cover
WD 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
Fast file transfer speeds
Reliable long-term performance
Large 2TB storage capacity
Quiet operation
5-year warranty
#TOP 9

Western Digital WD Red Plus 6TB NAS HDD

WD60EFPX
Western Digital WD Red Plus 6TB NAS HDD Cover
Western Digital 6TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD60EFPX

The WD Red Plus NAS Drive from Western Digital is designed to support storage capacities from 1TB up to 14TB, giving you flexibility depending on your needs. It works well with systems that have up to 8 drive bays, making it ideal for expanding your storage space. This drive can handle a heavy workload, transferring up to 180 terabytes of data per year, which is perfect if you rely on constant data access. Plus, it includes NASware firmware, ensuring smooth compatibility with NAS systems, so you get reliable performance in a small or medium business environment running 24/7.

What We Like
High storage capacity options
Strong reliability for NAS
Quiet operation
Easy installation and integration
Good value for money
#TOP 10

WD 1TB WD Blue Mobile HDD

WD10SPZX
Blue
WD 1TB WD Blue Mobile HDD Cover
Western Digital 1TB WD Blue Mobile Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 2.5" - WD10SPZX

The WD 1TB Blue HDD is a reliable and high-performance internal hard drive designed for everyday computing. With WD's renowned quality and reliability, you can trust this hard drive to store and access your data safely. The included Acronis True Image WD Edition cloning software allows for easy data transfer and backup. Additionally, the WD F.I.T. Lab certification ensures compatibility with a wide range of high-performance PC configurations. Whether you need to store documents, photos, videos, or games, the WD 1TB Blue HDD provides ample space and fast data transfer speeds. Upgrade your computer's storage with this dependable and efficient hard drive.

What We Like
Reliable and high-performance
Easy data transfer and backup
Ample space and fast data transfer speeds
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the difference between SAS SSD and SAS HDD?

SAS SSDs and SAS HDDs have different characteristics. HDDs offer more storage space, while SSDs are faster. Both SAS SSDs and SATA SSDs are faster than their HDD counterparts. SATA drives excel in writing data quickly, while SAS drives are faster at reading and writing data continuously.

2. What is the difference between SATA and SAS hard drives?

SATA and SAS hard drives have distinct advantages. SAS drives are ideal for servers and workstations due to their versatile connectors and faster performance in continuous data sessions. On the other hand, SATA drives are more cost-effective and better suited for storage purposes, offering fast data writing capabilities.

3. Can I replace a SAS drive with an SSD?

Yes, it is possible to replace a SAS drive with an SSD. Both SAS and SATA SSDs can be used in the same drive bay, making it easy to swap out SATA SSDs with SAS SSDs without requiring any changes to the server or infrastructure.

4. Can a SAS drive be used in a PC?

In most cases, a SAS drive will not work in a desktop PC, even with SAS-to-SATA adapters. The robust data transfer speeds of SAS are not fully utilized in a PC. SAS drives are typically designed for use in servers and workstations rather than consumer PCs.

5. Can you plug SATA into SAS?

Yes, SATA drives can be plugged into SAS controllers. SAS controllers support the use of SATA drives, allowing for expanded storage capacity with cost-effectiveness. SATA drives and SAS drives share similar features and infrastructure, making them compatible with each other.

6. Can you use SAS drives in a normal PC?

In most cases, it is not possible to use SAS drives in a desktop PC, even with SAS-to-SATA adapters. SAS drives are primarily designed for servers and workstations, and they may not fully utilize the data transfer speeds of SAS in a consumer PC setting.

Editor's Notes

During our sas internal hard drive research, we found 24 sas internal hard drive products and shortlisted 10 quality products. We collected and analyzed 863,493 customer reviews through our big data system to write the sas internal hard drives list. We found that most customers choose sas internal hard drives with an average price of $234.43.

The sas internal hard drives are available for purchase. We have researched hundreds of brands and picked the top brands of sas internal hard drives, including Seagate, Western Digital, WD. The seller of top 1 product has received honest feedback from 665 consumers with an average rating of 4.6.

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.