DatacenterDisk

HGST 4TB vs HGST HUS726040ALS210

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

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Our Recommendation
👑
HGST 4TB SAS 12G LFF Renewed

HGST 4TB SAS 12G LFF Renewed offers the best value at $20.00/TB. Available new with manufacturer warranty.

Best $/TB: HGST
Best Warranty: HGST
Best for RAID: HGST
Full Specification Comparison
Spec
HGST
4TB SAS 12G LFF Renewed
$20.00/TB
HGST
HUS726040ALS210 4TB SAS 12G
$22.25/TB
Brand
HGST
HGST
Model
4TB SAS 12G LFF Renewed
HUS726040ALS210 4TB SAS 12G
Series
Ultrastar
Ultrastar
Part Number
HUS724040ALS640
HUS726040ALS210
$/TB
👑$20.00
$22.25
Price
$79.99
$89.00
Condition
New
New
Capacity
4TB
4TB
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
—
—
Sector Size
512n
512e
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
—
—
Workload Tier
nearline
nearline
In Stock
✓ In Stock
✓ In Stock
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
HGST
HGST
NAS Storage
●●
●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●
●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose HGST 4TB SAS 12G LFF Renewed if:
  • ✓ You need maximum storage per dollar
  • ✓ You need new-with-warranty for compliance or budgeting
Buy HGST →
Choose HGST HUS726040ALS210 4TB SAS 12G if:
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You need new-with-warranty for compliance or budgeting
Buy HGST →

Frequently Asked Questions

HGST 4TB offers better value at $20.00/TB vs $22.25/TB - a 10% 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 similar warranty terms and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.

HGST 4TB 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.