HDWR21C vs ST12000NM001G
NAS drive head-to-head - specs, value and live price side by side.
Verdict
These are closely matched NAS drives of the same capacity - decide on price and warranty. Check the live $/TB above.
Value at a glance
Price / TB
HDWR21C
$64.11
ST12000NM001G
$39.71
Capacity
HDWR21C
12 TB
ST12000NM001G
12 TB
Noise (idle)
HDWR21C
20 dB
ST12000NM001G
29 dB
Price history · US, cheapest per day
HDWR21C $390
ST12000NM001G $499
zoomed ·
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| HDWR21C | ST12000NM001G | |
|---|---|---|
| Capacity | 12 TB | 12 TB |
| Recording tech | CMR | CMR |
| RAID / NAS safe | Yes | Yes |
| Class | Desktop | Enterprise |
| Spindle speed | 7200 RPM | 7200 RPM |
| Cache | 256 MB | 256 MB |
| Noise (idle) | 20 dB | 29 dB |
| Fill | Helium | Helium |
| Interface | SATA | SATA |
| Failure rate (AFR) | - | 0.97% |
| Price / TB | $64.11 | $39.71 |
| Buy | No US price yet | 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.
HDWR21C
No Backblaze failure data for this model.
2yr warranty
ST12000NM001G
0.97% AFR vs 1.34% fleet avg
95% CI 0.83-1.14%
13,216 drives · ~16,448 drive-years · 160 failures · Backblaze thru Q1 2026
5yr warranty · 550 TB/yr rated · 2,500,000h MTBF