WD181KRYZ vs WD181PURP
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
WD181KRYZ
$32.53
WD181PURP
$35.74
Capacity
WD181KRYZ
18 TB
WD181PURP
18 TB
Noise (idle)
WD181KRYZ
20 dB
WD181PURP
20 dB
Price history · FR, cheapest per day
WD181KRYZ €788
WD181PURP €1,078
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| WD181KRYZ | WD181PURP | |
|---|---|---|
| Capacity | 18 TB | 18 TB |
| Recording tech | CMR | CMR |
| RAID / NAS safe | Yes | Yes |
| Class | Enterprise | Surveillance |
| Spindle speed | 7200 RPM | 7200 RPM |
| Cache | 512 MB | 512 MB |
| Noise (idle) | 20 dB | 20 dB |
| Fill | Helium | Helium |
| Interface | SATA | SATA |
| Failure rate (AFR) | - | - |
| Price / TB | $32.53 | $35.74 |
| Buy |
€788
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|
No FR 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.
WD181KRYZ
No Backblaze failure data for this model.
5yr warranty · 550 TB/yr rated · 2,500,000h MTBF
WD181PURP
No Backblaze failure data for this model.
5yr warranty · 550 TB/yr rated · 2,500,000h MTBF