DatacenterDisk

WD Ultrastar vs WD Ultrastar

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

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Our Recommendation
👑
WD Ultrastar 10TB SATA HUH721010ALE600

WD Ultrastar 10TB SATA HUH721010ALE600 offers the best value at $28.99/TB. As a refurb unit, verify SMART data on arrival.

Best $/TB: WD
Best Warranty: WD
Best for RAID: WD
Full Specification Comparison
Spec
WD
Ultrastar 10TB SATA HUH721010ALE600
$37.90/TB
WD
Ultrastar 10TB SATA HUH721010ALE600
$28.99/TB
Brand
WD
WD
Model
Ultrastar 10TB SATA HUH721010ALE600
Ultrastar 10TB SATA HUH721010ALE600
Series
Ultrastar HC510
Ultrastar He10
Part Number
HUH721010ALE600
HUH721010ALE600
$/TB
$37.90
👑$28.99
Price
$379.00
$289.88
Condition
New
Refurb
Capacity
10TB
10TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
CMR
RPM
7,200
N/A (SSD)
Cache
256MB
256MB
Sector Size
512e
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
WD
WD
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●●
●●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose WD Ultrastar 10TB SATA HUH721010ALE600 if:
  • ✓ You need new-with-warranty for compliance or budgeting
Buy WD →
Choose WD Ultrastar 10TB SATA HUH721010ALE600 if:
  • ✓ You need maximum storage per dollar
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You're comfortable with datacenter refurb to maximize savings
Buy WD →

Frequently Asked Questions

WD Ultrastar offers better value at $28.99/TB vs $37.90/TB - a 24% 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.

WD Ultrastar is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SATA interface is compatible with all NAS platforms including Synology, QNAP and TrueNAS.