Best Enterprise Hard Drives
Enterprise-grade drives designed for 24/7 server and datacenter workloads. Seagate Exos and Western Digital Ultrastar lines offer higher endurance, longer warranties, and vibration tolerance for multi-drive chassis.
Quick Verdict
- Who this is for
- Homelab builders, server admins, and anyone needing 24/7-rated drives with high endurance and long warranties.
- What usually wins
- The lowest price-per-TB Exos or Ultrastar at your target capacity. Refurbished enterprise pulls for non-critical or homelab storage.
- Prioritise
- Lowest price per TB among 24/7-rated drives. New for production; refurbished for homelab and backup.
Prices updated hourly from Amazon US and UK. All links go directly to the retailer. Details.
New Enterprise Drives
Brand-new datacenter drives with full manufacturer warranty. Ideal for production servers where warranty coverage and known provenance matter.
Seagate Exos 7E8 HDD 512E/4KN SAS
Seagate Exos X14 ST10000NM0478 - Hard drive - 10 TB - internal - 3.5" - SATA 6Gb/s - 7200 rpm - buffer: 256 MB
HGST Ultrastar DC HC320 HUS728T8TAL5204 8 TB Hard Drive - 3.5 Internal - SAS [12Gb/s SAS]
Seagate Exos X10 Enterprise Hard Drive ST10000NM0096 10 TB - SAS 12Gb/s
Seagate Enterprise ST3000NM0025 3TB 7200RPM SAS 12.0 GB/s 128MB 512n Enterprise Hard Drive (3.5 inch, Exos 7E8 HDD 512N SAS)
Seagate Exos 7E10 8TB Internal Hard Drive HDD - 3.5 Inch 512e/4Kn SAS 6GB/s, 7.200 RPM, 256MB Cache and 2M MTBF for Enterprise, Data Centre (ST8000NM017B)
Seagate Exos X24 24TB internal server Hard drive ST24000NM000C 3.5" HDD SATA3 512MB 7200RPM
Seagate Exos X14 ST12000NM0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
Refurbished Enterprise Drives
Recertified datacenter pulls at significant discounts. Tested before resale, these offer strong value for homelabs and non-critical storage.
Seagate EXOS X22 22TB Interne Server Festplatte ST22000NM000C 3,5 Zoll HDD SATA 6Gb/s 7200RPM SED 512E 512MB Cache (Renewed)
HGST, a Western Digital Company Ultrastar 7K6000 6000GB 7200RPM SAS 512E Ultra SE 128MB Cache 3.5-Inch Internal Bare or OEM Drives 0F22811
Seagate EXOS X24 24TB Interne Festplatte 3.5 Zoll SATA 3 Gbit/s 512 MB, ST24000NM000C (Renewed)
Western Digital Ultrastar DC HC530 WUH721414ALN604 0F31102 14TB 7.2K RPM SATA 6Gb/s 4Kn Power Disable HDD (Renewed)
ST14000NM0048 Seagate 14TB SAS 12 Gb/s (Not SATA) Exos X14 (New with Warranty) 3.5 Inch 7200 RPM 256MB Cache 512e 4Kn Enterprise Hard Drive HDD
Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)
Seagate Exos 7E8 8TB 7200 RPM Nearline SAS 3.5-Inch Enterprise Hard Drive (ST8000NM0075) (Renewed)
Seagate Exos X18 18TB SAS 12Gb/s 7200RPM 3.5" Enterprise Hard Drive - ST18000NM005J (Renewed)
High-Capacity Enterprise (14 TB+)
Dense storage for servers and JBODs. Larger enterprise drives reduce the number of bays and HBAs needed, lowering total system cost.
Seagate Exos X14 ST10000NM0478 - Hard drive - 10 TB - internal - 3.5" - SATA 6Gb/s - 7200 rpm - buffer: 256 MB
Seagate Exos X24 24TB internal server Hard drive ST24000NM000C 3.5" HDD SATA3 512MB 7200RPM
Seagate Exos X24 3.5" Internal Hard Drive - 20TB, Single, SATA III 6 Gb/s
Seagate Exos X24 24TB Enterprise Internal Hard Drive HDD - 6GB/s SATA 7200RPM 2.5M MTBF (ST24000NM002H)
Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)
Western Digital Ultrastar DC HC550 18 TB Hard Drive - 3.5 Internal - SATA
Seagate Exos X16 ST16000NM003G 16 TB Hard Drive - Internal - SATA (SATA/600)
Seagate Exos X18 ST16000NM001J 16 TB Hard Drive - Internal - SATA (SATA/600) - Video Surveillance System, Storage System Device Supported - 7200rpm - Hot Pluggable - 512e/4Kn Format
How to Choose
Enterprise drives are over-engineered for datacenter duty. Here is how to pick the right one without overspending.
Exos vs Ultrastar
Both target the same workloads and carry similar specs (550 TB/year, 2.5M-hour MTBF, 5-year warranty). The choice usually comes down to whichever is cheaper at your target capacity.
New vs refurbished
New enterprise drives include a full 5-year manufacturer warranty. Refurbished datacenter pulls are often 40–60% cheaper and still have substantial life — enterprise drives are rated for 2M+ hours MTBF.
Interface
Most consumer and homelab builds use SATA. SAS models require an HBA and are typically found in server and JBOD setups. Verify your controller supports the interface before buying.
Capacity and density
Higher-capacity enterprise drives reduce the number of bays and HBAs needed, lowering total system cost. At 14 TB+, all models are helium-sealed.
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