Verdict

These are closely matched NAS drives of the same capacity - decide on price and warranty. Check the live $/TB above.

HAT5320-4T
Synology Enterprise Series · 4TB · Enterprise
No CA price yet
WD4005FFBX
WD Red Pro · 4TB · NAS-Pro
C$350 (C$87.50/TB)

Value at a glance

Capacity
HAT5320-4T 4 TB
WD4005FFBX 4 TB

Price history · CA, cheapest per day

WD4005FFBX C$350
zoomed · drag to zoom
C$411 C$283 C$155 Aug 2024 Dec 2024 May 2025 Sep 2025 Feb 2026 Jul 2026
HAT5320-4T WD4005FFBX
Capacity 4 TB 4 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Enterprise NAS-Pro
Spindle speed 7200 RPM 7200 RPM
Cache 512 MB 256 MB
Noise (idle) - 20 dB
Fill Air Air
Interface SATA SATA
Failure rate (AFR) - -
Price / TB - $53.73
Buy No CA price yet
C$350
View at Amazon →

Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price. Buy links are Amazon affiliate.

HAT5320-4T

No Backblaze failure data for this model.

5yr warranty · 550 TB/yr rated · 2,500,000h MTBF

WD4005FFBX

No Backblaze failure data for this model.

5yr warranty · 300 TB/yr rated · 1,000,000h MTBF