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How is the WD RED PLUS 12 TB quieter than the 6 TB versions?

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KumutyKaB86@alien.topB
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Hello,
I do not understand. The 12 TB and 14 TB are 7200 rpm, the 6 TB is 5400 rpm. Doesn’t the noise level depend on the rpm?

According to the WD documentation:

12 TB (WD120EFBX) or 14 TB

Iddle: 20 dB SeeK: 29 dB

​

6 TB (WD60EFZX)

Iddle: 25 dB SeeK: 30 dB

https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/internal-drives/wd-red-plus-hdd/product-brief-western-digital-wd-red-plus-hdd.pdf

​

So far, I didn’t want to buy a 2 bay, 2 x 12 TB HDD because I thought it would be noisier than a 4 bay, 4 x 6 TB HDD.

​

What is the truth?

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EasyRhino75@alien.topB
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I would suspect the quieter at idle is because of helium.

I have both drives and can confirm the old bruisers are pretty loud.

Drives are going to be a little louder doing a random workload than when idle or doing sequential work

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