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
€813 (€50.80/TB)
WUH721816ALE6Lx
WD Ultrastar DC HC550 · 16TB · Enterprise
€576 (€35.97/TB)

Value at a glance

Price / TB
ST16000VE002 $32.92
WUH721816ALE6Lx $37.70
Capacity
ST16000VE002 16 TB
WUH721816ALE6Lx 16 TB

Price history · FR, cheapest per day

ST16000VE002 €813 WUH721816ALE6Lx €576
zoomed · drag to zoom
€902 €610 €318 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
ST16000VE002 WUH721816ALE6Lx
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 SATA
Failure rate (AFR) - 0.88%
Price / TB $32.92 $37.70
Buy
€813
View at Amazon →
€576
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.

ST16000VE002

No Backblaze failure data for this model.

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

WUH721816ALE6Lx

0.88% AFR vs 1.34% fleet avg

95% CI 0.78-0.98%

29,795 drives · ~36,808 drive-years · 323 failures · Backblaze thru Q1 2026

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