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 DC HC530 14TB SATA 4Kn NAS

WD Ultrastar DC HC530 14TB SATA 4Kn NAS wins on both price ($20.00/TB) and warranty (5 years).

Best $/TB: WD
Best Warranty: WD
Best for RAID: WD
Full Specification Comparison
Spec
WD
Ultrastar DC HC530 14TB SATA 4Kn NAS
$20.00/TB
WD
Ultrastar 14TB SATA WUH721414ALE604
$25.71/TB
Brand
WD
WD
Model
Ultrastar DC HC530 14TB SATA 4Kn NAS
Ultrastar 14TB SATA WUH721414ALE604
Series
Ultrastar DC
Ultrastar HC530
Part Number
WUH721414ALN604
WUH721414ALE604
$/TB
👑$20.00
$25.71
Price
$279.99
$359.99
Condition
New
Refurb
Capacity
14TB
14TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
CMR
RPM
7,200
7,200
Cache
512MB
512MB
Sector Size
4Kn
512e
Workload Rating
550TB/yr
—
DWPD
N/A
N/A
Warranty
5 years
—
Workload Tier
nearline
nearline
In Stock
Check
✓ 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 DC HC530 14TB SATA 4Kn NAS if:
  • ✓ You need maximum storage per dollar
  • ✓ 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
Buy WD →
Choose WD Ultrastar 14TB SATA WUH721414ALE604 if:
  • ✓ You're comfortable with datacenter refurb to maximize savings
Buy WD →

Frequently Asked Questions

WD Ultrastar offers better value at $20.00/TB vs $25.71/TB - a 22% 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.

WD Ultrastar carries a longer 5-year warranty vs unknown years for WD Ultrastar. Longer warranty typically correlates with manufacturer confidence in reliability.

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.