Only buy HDDs for bulk media storage and backups; never use an HDD as your primary boot drive for Windows. Look for CMR (Conventional Magnetic Recording) drives over SMR (Shingled) for better write performance.
Updated Apr 5, 2026
$29
WD
WD 12TB Ultrastar DC HA340 7200 rpm SATA III 3.5" Internal HDD
0B47063
$363.99
Jason Cases
Jason Cases Dual 3.5" Hard Drive Case
JCHD352BK
$379
Jason Cases
Jason Cases 3.5" Hard Drive Case
JCHD3512PL
$379
ACTi
ACTi 1TB 5400 rpm SATA II 2.5" Internal HDD
PHDD-1200
$379.2
Istorage
Istorage 5TB diskAshur2 USB 3.1 Encrypted Portable HDD (Ocean Blue)
IS-DA2-256-5000-BE
$355
SYMPLY
SYMPLY 30TB SymplySPARK 7200 rpm Enterprise Hard Drive Module
SYSPK-MS1X8HD30
$1,040.25
OWC
OWC 20TB StudioStack Thunderbolt 5 Storage Hub (1 x 20TB HDD)
OWCTB5SSH20S00
$929.99
Apricorn
Apricorn 16TB Aegis Padlock DT USB 3.0 External Desktop Drive
ADT-3PL256-16TB
$931.99
Synology
Synology 20TB HAS5300 SAS-3 3.5" Internal Enterprise HDD
HAS5310-20T
$949.99
Apricorn
Apricorn 16TB Aegis Padlock DT FIPS 140-2 Level 2-Validated External Desktop Drive
ADT-3PL256F-16TB
$949.99
Oyen Digital
Oyen Digital MiniPro RAID V4 16TB 2-Bay USB-C 3.2 Gen 2 Portable TLC RAID Array (2 x 8TB)
2RV4-SS-16T-AX
$2,199
OWC
OWC 64TB Mercury Elite Pro Quad 4-Drive HDD Storage Solution (RAID 5)
OWCMEQCTSRT64
$2,249.99
Synology
Synology DiskStation DS1525+ 5-Bay NAS Enclosure, Bundle with 5x IronWolf 12TB SATA III 3.5" 7200 RPM Internal NAS Hard Drive
DS1522+ C
$2,399.94
Oyen Digital
Oyen Digital Mobius 120TB 5-Bay USB 3.0 RAID Array (5 x 24TB)
3R5-EB3-120TB
$3,499
Oyen Digital
Oyen Digital Fortis 5C 120TB 5-Bay USB 3.2 Gen 2 External RAID Drive Array (5 x 24TB)
5FU3-C-120T-SR
$3,819
Toshiba
Toshiba 2TB Canvio Flex USB 3.2 Gen 1 Portable Hard Drive
$84.99
Synology
Synology DiskStation DS1525+ 5-Bay NAS Enclosure, Bundle with 5x IronWolf 4TB SATA III 3.5" 5400 RPM Internal NAS Hard Drive
$1,499.94
Buffalo
Buffalo Replacement 4TB Hard Drive for DriveStation Ultra
$249.99
Toshiba
Toshiba 10TB X300 Performance 3.5" CMR Internal Hard Drive
$244.99
WD
WD 2TB My Passport USB 3.2 Gen 1 External Hard Drive (Black)
$84.99
SanDisk Professional
SanDisk Professional 12TB G-DRIVE Enterprise-Class USB 3.2 Gen 2 External Hard Drive
$419.99
Glyph Technologies
Glyph Technologies 1TB BlackBox Mobile Hard Drive
$109.99
Apricorn
Apricorn 2TB Aegis Fortress L3 FIPS 140-2 Level 3 Encrypted Portable Hard Drive
$293.99
Apricorn
Apricorn 18TB Aegis Padlock DT FIPS 140-2 Level 2-Validated External Desktop Drive
$1,045.99
Seagate
Seagate LaCie 4TB d2 Professional USB-C Desktop HDD
$184.99
WD
WD 24TB Ultrastar DC HC590 7200 rpm SATA III 3.5" Internal Data Center HDD
$599
Glyph Technologies
Glyph Technologies SecureDrive+ Professional Encrypted External HDD with Bluetooth
$349.99
Apricorn
Apricorn 4TB Aegis Padlock DT FIPS 140-2 Level 2-Validated External Desktop Drive
$439
WD
WD 12TB Gold 7200 rpm SATA III 3.5" Internal Enterprise HDD
$304.99
Buffalo
Buffalo Hard Drive for TeraStation Essentials (2TB)
$129.99
Seagate
Seagate 20TB SkyHawk AI 7200 rpm SATA III 3.5" Internal Surveillance HDD
$419.99
Seagate
IronWolf Pro 16TB NAS Internal Hard Drive with Rescue Data Recovery Services
$399.99
Glyph Technologies
Glyph Technologies SecureDrive+ Professional Encrypted External HDD with Bluetooth
$379.99
Oyen Digital
Oyen Digital 24TB HDX Pro C USB-C 3.2 Gen 2 External Enterprise Hard Drive
$809
Buffalo
Buffalo 2TB Replacement Hard Drive for the LinkStation 500 Series
$149.99
WD
WD 26TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD
$554.99
LaCie
LaCie 20TB d2 Professional USB-C 3.2 Gen 2 External Hard Drive
$509.99
Glyph Technologies
Glyph Technologies SecureDrive+ Professional Encrypted External Hard Disk Drive with Keypad
$249.99
OWC
OWC ThunderBay Flex 8 32TB 8-Bay Thunderbolt 3 RAID Array (8 x 4TB HDDs)
$3,199.99
Mechanical hard disk drives (HDDs) are cheap to own, using a few watts of power while spinning. The main hidden cost is cloud backup subscriptions, as HDDs will eventually fail and data recovery is exorbitant.
Common Failure Modes
HDDs consist of spinning platters and delicate read/write heads, making them highly susceptible to physical shock and mechanical wear. When an HDD fails, it is replaced, not repaired, unless expensive data recovery is required.
Only buy HDDs for bulk media storage and backups; never use an HDD as your primary boot drive for Windows. Look for CMR (Conventional Magnetic Recording) drives over SMR (Shingled) for better write performance.
Mechanical hard drives have moving parts that wear out over time. They typically function reliably for several years before mechanical fatigue sets in.
Top-rated hard drives brands include WD, Istorage, Seagate, Toshiba, Buffalo and more. Covala Shopping tracks 669 hard drives from 48+ brands.
Mechanical hard disk drives (HDDs) are cheap to own, using a few watts of power while spinning. The main hidden cost is cloud backup subscriptions, as HDDs will eventually fail and data recovery is exorbitant.
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