DatacenterDisk

Synology HAT5300 vs WD Ultrastar

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

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Our Recommendation
👑
WD Ultrastar DC HC570 20TB SATA

WD Ultrastar DC HC570 20TB SATA wins on both price ($23.50/TB) and warranty (5 years).

Best $/TB: WD
Best Warranty: WD
Best for RAID: WD
Full Specification Comparison
Spec
Synology
HAT5300 20TB NAS Enterprise
$42.28/TB
WD
Ultrastar DC HC570 20TB SATA
$23.50/TB
Brand
Synology
WD
Model
HAT5300 20TB NAS Enterprise
Ultrastar DC HC570 20TB SATA
Series
HAT5310
Ultrastar DC
Part Number
HAT5310-20T
WUH722020BLE6L4
$/TB
$42.28
👑$23.50
Price
$845.68
$469.99
Condition
New
New
Capacity
20TB
20TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
ePMR
RPM
7,200
7,200
Cache
256MB
512MB
Sector Size
512e
512e
Workload Rating
👑550TB/yr
👑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
Synology
WD
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●●●
●●●
Virtualization
●
●
AI/ML Storage
●●
●●
Buying Recommendation
Choose Synology HAT5300 20TB NAS Enterprise if:
  • ✓ Your server runs 24/7 under heavy sustained load
  • ✓ You need new-with-warranty for compliance or budgeting
  • ✓ You need high-density storage for bulk/archive workloads
Buy Synology →
Choose WD Ultrastar DC HC570 20TB SATA 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 →

Frequently Asked Questions

WD Ultrastar offers better value at $23.50/TB vs $42.28/TB - a 44% 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.

Synology HAT5300 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.