Verdict

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

ST16000VE002
Seagate SkyHawk AI · 16TB · Surveillance
$683 ($42.69/TB)
WUH721816AL5204
WD Ultrastar DC HC550 · 16TB · Enterprise
No US price yet

Value at a glance

Capacity
ST16000VE002 16 TB
WUH721816AL5204 16 TB

Price history

US · cheapest per day

ST16000VE002 $683
zoomed · drag to zoom
$860 $535 $210 Nov 2024 Mar 2025 Aug 2025 Dec 2025 May 2026 Sep 2026
ST16000VE002 WUH721816AL5204
Capacity 16 TB 16 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Surveillance Enterprise
Spindle speed 7200 RPM 7200 RPM
Cache 256 MB 512 MB
Noise (idle) - 20 dB
Fill Helium Helium
Interface SATA SAS
Failure rate (AFR) - -
Price / TB $32.92 -
Buy
$683
View at Amazon →
No US price yet

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.

ST16000VE002

No Backblaze failure data for this model.

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

WUH721816AL5204

No Backblaze failure data for this model.

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