Are the WMC4ZN0 and SPC4ZN0 different drives?

No. Both are the WD80EFPX, an 8TB Red Plus with 5400 RPM, 64 MB cache and SATA 6Gb/s. The suffix marks a regional or packaging variant.

Which is better for a home NAS?

Either. They are the same CMR drive, which is what you want in a multi-bay NAS. Pick the one with the lower price and a return window.

Is $329.99 a good price for 8TB?

It is on the high side. Check the price history on this page before buying; Red Plus 8TB often sells for less.

Neither, on paper. Same platters, same workload rating. Buy from a seller with a clear warranty and check the serial on WD's site.

Does either come with encryption?

Both list hardware encryption and password protection. That only helps if your NAS supports drive-level encryption.

Can I mix A and B in one NAS?

Yes. Same model and firmware family, so they behave the same in an array. Match capacity and speed, which they already do.

WD Red Plus 8TB NAS HDD vs WD Red Plus 8TB NAS HDD

These are the same drive. Both are the 8TB WD Red Plus (WD80EFPX), a 5400 RPM CMR NAS disk with a 64 MB cache and SATA 6Gb/s. The model suffixes -WMC4ZN0 and -SPC4ZN0 are regional or packaging variants, not different hardware. Buy whichever is cheaper and in stock; the only new price on record is $329.99 at PayMore Avon as of November 8, 2026, for the WMC4ZN0.

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