Verdict

All are CMR NAS drives. The ST16000NM001G has the lowest measured failure rate (0.53% AFR), making it the safer long-term choice.

MG08ACA16Tx
Toshiba MG08 · 16TB · Enterprise
$608 ($38.03/TB)
ST16000NM001G
Seagate Exos X16 · 16TB · Enterprise
$1,000 ($62.50/TB)

Value at a glance

Price / TB
MG08ACA16Tx $29.69
ST16000NM001G $29.69
Failure rate (AFR)
MG08ACA16Tx 1.43%
ST16000NM001G 0.53%
Capacity
MG08ACA16Tx 16 TB
ST16000NM001G 16 TB
Noise (idle)
MG08ACA16Tx 20 dB
ST16000NM001G 29 dB

Price history · US, cheapest per day

MG08ACA16Tx $608 ST16000NM001G $1,000
zoomed · drag to zoom
$1,000 $804 $608 Dec 2 Jan 17 Mar 5 Apr 21 Jun 7 Jul 24
MG08ACA16Tx ST16000NM001G
Capacity 16 TB 16 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) 1.43% 0.53%
Price / TB $29.69 $29.69
Buy
$608
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$1,000
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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.

MG08ACA16Tx

1.43% AFR vs 1.34% fleet avg

95% CI 1.34-1.53%

51,185 drives · ~63,543 drive-years · 908 failures · Backblaze thru Q1 2026

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

ST16000NM001G

0.53% AFR vs 1.34% fleet avg

95% CI 0.47-0.61%

34,729 drives · ~42,410 drive-years · 226 failures · Backblaze thru Q1 2026

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