Verdict

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

MG10ACA20TE
Toshiba MG10 · 20TB · Enterprise
€823 (€41.15/TB)
ST20000NM007D
Seagate Exos X20 · 20TB · Enterprise
€1,124 (€56.19/TB)

Value at a glance

Price / TB
MG10ACA20TE $39.80
ST20000NM007D $42.00
Capacity
MG10ACA20TE 20 TB
ST20000NM007D 20 TB
Noise (idle)
MG10ACA20TE 20 dB
ST20000NM007D 29 dB

Price history · DE, cheapest per day

MG10ACA20TE €823 ST20000NM007D €1,124
zoomed · drag to zoom
€1,149 €734 €318 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
MG10ACA20TE ST20000NM007D
Capacity 20 TB 20 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Enterprise Enterprise
Spindle speed 7200 RPM 7200 RPM
Cache 512 MB 256 MB
Noise (idle) 20 dB 29 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) 0.68% -
Price / TB $39.80 $42.00
Buy
€823
View at Amazon →
€1,124
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.

MG10ACA20TE

0.68% AFR vs 1.34% fleet avg

95% CI 0.56-0.81%

20,451 drives · ~18,013 drive-years · 122 failures · Backblaze thru Q1 2026

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

ST20000NM007D

No Backblaze failure data for this model.

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