DatacenterDisk

HGST Ultrastar vs Seagate Enterprise

Side-by-side spec and price comparison. Live data from Amazon US.

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Our Recommendation
👑
Seagate Enterprise Capacity 10TB SAS Helium

Seagate Enterprise Capacity 10TB SAS Helium balances price ($47.45/TB), warranty (5 years), and 550TB/yr workload rating for the best overall value.

Best $/TB: HGST
Best Warranty: Seagate
Best for RAID: Seagate
Full Specification Comparison
Spec
HGST
Ultrastar He10 10TB SAS 12G
$25.53/TB
Seagate
Enterprise Capacity 10TB SAS Helium
$47.45/TB
Brand
HGST
Seagate
Model
Ultrastar He10 10TB SAS 12G
Enterprise Capacity 10TB SAS Helium
Series
Ultrastar He
Enterprise Capacity
Part Number
HUH721010AL5200
ST10000NM0096
$/TB
👑$25.53
$47.45
Price
$255.31
$474.45
Condition
New
New
Capacity
10TB
10TB
Interface
SAS-12G
SAS-12G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
CMR
RPM
7,200
7,200
Cache
256MB
—
Sector Size
512e
512e
Workload Rating
—
550TB/yr
DWPD
N/A
N/A
Warranty
👑5 years
👑5 years
Workload Tier
nearline
nearline
In Stock
✓ In Stock
✓ In Stock
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
HGST
Seagate
NAS Storage
●●
●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●●
●●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose HGST Ultrastar He10 10TB SAS 12G if:
  • ✓ You need maximum storage per dollar
  • ✓ You need new-with-warranty for compliance or budgeting
Buy HGST →
Choose Seagate Enterprise Capacity 10TB SAS Helium if:
  • ✓ You need 5-year warranty coverage for production
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ Your server runs 24/7 under heavy sustained load
  • ✓ You need new-with-warranty for compliance or budgeting
Buy Seagate →

Frequently Asked Questions

HGST Ultrastar offers better value at $25.53/TB vs $47.45/TB - a 46% price difference. Factor in warranty length and workload rating when the price gap is small.

Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.

Both drives carry 5-year warranties and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.

HGST Ultrastar is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SAS interface requires a SAS HBA or SAS-capable NAS.