x4 Western Digital Red WD40EFZX NAS Hard Drives - $250 (berkeley)

x4 Western Digital Red WD40EFZX NAS Hard Drives 1

x4 Western Digital Red WD40EFZX NAS Hard Drives 1 thumbnail

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condition: like new

make / manufacturer: Western Digital

model name / number: WD40EFZX

size / dimensions: 4TB

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Installed larger drives in my NAS, so these are available for sale. Drives are expensive as hell right now and I had to pay that price to upgrade, so price is pretty firm. As listed these are ~$15/TB, while new drives are going for ~$30/TB for the same performance.

They were installed in a Synology unit in 2022 and ran continuously without error since. I had automatic quick and extended S.MA.R.T. tests run on them every week and they passed every time. The screenshots attached show the latest tests came back healthy and also display the serial numbers so you can match that to the picture of them.

I have an external drive dock so we can pull out a laptop when we meet and demonstrate that they all pass S.M.A.R.T. tests and you can validate the power on hours.

Will only sell in person at a public place, cash preferred but will consider Venmo if you ask ahead of time. You will probably need to come to Berkeley/Oakland area for pickup, if I'll be in your area I can maybe meet you there but local buyers get priority.

post id: 7901400956

posted: 2025-12-09 21:18

updated: 2026-02-28 10:26

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x4 Western Digital Red WD40EFZX NAS Hard Drives - computer parts -...

Installed larger drives in my NAS, so these are available for sale. Drives are expensive as hell right now and I had to pay that price to upgrade, so price is pretty firm. As listed these are...