Best Internal Hard Drives Updated July 2025
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Best Internal Hard Drives
2025 Buyer's GuideUpdated July 2025
Advertiser disclosure About our rankings
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Best Hard Drive

10.0

1

10.0

HGST - WD Ultrastar DC HC520 HDD | HUH721212ALE601 | 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch | ISE 512e | Helium Data Cent...
Type: Internal HDD
Storage Capacity: 12TB
Transfer Rate: 180 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
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Save 21%
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Picked by 103 people this week!
Save 21%
Compare
Picked by 103 people this week!
Picked by 103 people this week!
Best Hard Drive

10.0

1
HGST - WD Ultrastar DC HC520 HDD | HUH721212ALE601 | 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch | ISE 512e | Helium Data Cent...
Type: Internal HDD
Storage Capacity: 12TB
Transfer Rate: 180 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Picked by 103 people this week!
Save 21%
Compare
Read Full Review

9.6

2

9.6

Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration...
Type: Internal HDD
Storage Capacity: 1TB - 14TB
Transfer Rate: 190 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
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Save 17%
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Save 17%
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9.6

2
Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration...
Type: Internal HDD
Storage Capacity: 1TB - 14TB
Transfer Rate: 190 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Save 17%
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Read Full Review

9.2

3

9.2

Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage –...
Type: Internal HDD
Storage Capacity: 2TB - 24TB
Transfer Rate: 210 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
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9.2

3
Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage –...
Type: Internal HDD
Storage Capacity: 2TB - 24TB
Transfer Rate: 210 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
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Best Value

9.1

4

9.1

Western Digital 1TB WD Blue PC Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD10EZEX
Type: Internal HDD
Storage Capacity: 1TB - 8TB
Transfer Rate: 100 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
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Best Value

9.1

4
Western Digital 1TB WD Blue PC Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD10EZEX
Type: Internal HDD
Storage Capacity: 1TB - 8TB
Transfer Rate: 100 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Compare

8.8

5

8.8

Seagate BarraCuda 8TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST8000DMZ04/...
Type: Internal HDD
Storage Capacity: 1TB - 14TB
Transfer Rate: 190 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
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Compare

8.8

5
Seagate BarraCuda 8TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST8000DMZ04/...
Type: Internal HDD
Storage Capacity: 1TB - 14TB
Transfer Rate: 190 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Compare
Read Full Review

8.5

6

8.5

Seagate IronWolf 4TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 5900 RPM 64MB Cache for RAID Network Attached Storag...
Type: Internal HDD
Storage Capacity: 3TB - 20TB
Transfer Rate: 180 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Compare
Compare

8.5

6
Seagate IronWolf 4TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 5900 RPM 64MB Cache for RAID Network Attached Storag...
Type: Internal HDD
Storage Capacity: 3TB - 20TB
Transfer Rate: 180 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Compare

8.4

7

8.4

Western Digital 2TB WD Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD2003FZEX
Type: Internal HDD
Storage Capacity: 500GB - 10TB
Transfer Rate: 164 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Compare
Compare

8.4

7
Western Digital 2TB WD Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD2003FZEX
Type: Internal HDD
Storage Capacity: 500GB - 10TB
Transfer Rate: 164 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Compare
Premium Pick

8.2

8

8.2

Seagate (Recertified Exos X 28TB Internal Hard Drive HDD - 3.5 in CMR SATA 6Gb/s, 7200 RPM, 512MB Cache, 2.5M MTBF (ST28000NM00...
Type: Internal HDD
Storage Capacity: 28TB
Transfer Rate: 270 MB/s
Hardware Interface: SATA 6Gb/s
Compatibility: Windows, Mac
Compare
Compare
Premium Pick

8.2

8
Seagate (Recertified Exos X 28TB Internal Hard Drive HDD - 3.5 in CMR SATA 6Gb/s, 7200 RPM, 512MB Cache, 2.5M MTBF (ST28000NM00...
Type: Internal HDD
Storage Capacity: 28TB
Transfer Rate: 270 MB/s
Hardware Interface: SATA 6Gb/s
Compatibility: Windows, Mac
Compare

8.0

9

8.0

Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Resc...
Type: Internal HDD
Storage Capacity: 4TB
Transfer Rate: 6000 MB/s
Hardware Interface: SATA 6GB/s
Compatibility: Windows
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8.0

9
Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Resc...
Type: Internal HDD
Storage Capacity: 4TB
Transfer Rate: 6000 MB/s
Hardware Interface: SATA 6GB/s
Compatibility: Windows
Compare
Read Full Review
Popular

7.8

10

7.8

Seagate Enterprise Capacity 3.5 HDD 10TB (Helium) 7200RPM SATA 6Gb/s 256 MB Cache Internal Bare Drive (ST10000NM0016) (Renewed)...
Value for money
Functionality
Capacity
Drive performance
Ease of installation
Save 25%
Save 25%
Popular

7.8

10
Seagate Enterprise Capacity 3.5 HDD 10TB (Helium) 7200RPM SATA 6Gb/s 256 MB Cache Internal Bare Drive (ST10000NM0016) (Renewed)...
Value for money
Functionality
Capacity
Drive performance
Ease of installation
Save 25%
We also considered 1 other:

Our Top Choice

Best Hard Drive

10.0

1

10.0

HGST - WD Ultrastar DC HC520 HDD | HUH721212ALE601 | 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch | ISE 512e | Helium Data Cent...
Type: Internal HDD
Storage Capacity: 12TB
Transfer Rate: 180 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Read Full Review
Save 21%
Compare
Picked by 103 people this week!
Save 21%
Compare
Picked by 103 people this week!
Picked by 103 people this week!
Best Hard Drive

10.0

1
HGST - WD Ultrastar DC HC520 HDD | HUH721212ALE601 | 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-Inch | ISE 512e | Helium Data Cent...
Type: Internal HDD
Storage Capacity: 12TB
Transfer Rate: 180 MB/s
Hardware Interface: SATA 6 GB/s
Compatibility: Windows, Mac
Picked by 103 people this week!
Save 21%
Compare
Read Full Review

Compare Features

Hardware Interface
Best Hard Drive
1. WD Ultrastar DC HC520 HDD (Renewed)
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HGST
at Amazon
2. Seagate BarraCuda Internal Hard Drive (4TB)
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SEAGATE
at Amazon
3. Seagate IronWolf NAS Internal Hard Drive HDD
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at Amazon
Best Value
4. Western Digital WD Blue Hard Drive
WESTERN DIGITAL Preview WESTERN DIGITAL Preview
WESTERN DIGITAL
at Amazon
5. Seagate BarraCuda Internal Hard Drive HDD
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SEAGATE
at Amazon
6. Seagate Ironwolf NAS Internal Hard Drive
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SEAGATE
at Amazon
7. Western Digital 2TB Black Internal Hard Drive
WESTERN DIGITAL Preview WESTERN DIGITAL Preview
WESTERN DIGITAL
at Amazon
Premium Pick
8. Seagate Exos X Internal Hard Drive (Renewed)
SEAGATE Preview SEAGATE Preview
SEAGATE
at Amazon
9. Seagate IronWolf 4TB NAS Internal Hard Drive
SEAGATE Preview SEAGATE Preview
SEAGATE
at Amazon
Popular
10. Seagate Enterprise Capacity 3.5 HDD 10TB (Helium) 7200RPM SATA 6Gb/s 256 MB Cache Internal Bare Drive (ST10000NM0016) (Renewed)...
SEAGATE Preview SEAGATE Preview
SEAGATE
at Amazon
Deal
Save 21% Save 17% — — — — — — — Save 25%
Deal Save 21% Save 17% — — — — — — — Save 25%
Type
Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD
Type 		Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD Internal HDD
Storage Capacity
12TB 1TB - 14TB 2TB - 24TB 1TB - 8TB 1TB - 14TB 3TB - 20TB 500GB - 10TB 28TB 4TB
Storage Capacity 		12TB 1TB - 14TB 2TB - 24TB 1TB - 8TB 1TB - 14TB 3TB - 20TB 500GB - 10TB 28TB 4TB
Transfer Rate
180 MB/s 190 MB/s 210 MB/s 100 MB/s 190 MB/s 180 MB/s 164 MB/s 270 MB/s 6000 MB/s
Transfer Rate 		180 MB/s 190 MB/s 210 MB/s 100 MB/s 190 MB/s 180 MB/s 164 MB/s 270 MB/s 6000 MB/s
Hardware Interface
SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6Gb/s SATA 6GB/s
Hardware Interface 		SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6 GB/s SATA 6Gb/s SATA 6GB/s
Compatibility
Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows
Compatibility 		Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows, Mac Windows

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Related Categories
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SATA Hard DriveHard Drive for NASNAS Hard DrivePC Hard Drive8TB Hard DriveSeagate Hard Drive