Which is better for a NAS?

The WD Red Plus. It is designed for NAS duty and lists 175 MB/s read and 215 MB/s write. The Seagate is a general-purpose desktop drive.

Which holds more data?

The Seagate, if you pick its 4TB version. The WD Red Plus listing is 2TB per drive, two drives in the box.

Is the WD Red Plus worth the extra?

At $154.00 for two drives at Newegg as of November 8, 2026, it is about $77 per drive, which is competitive for NAS-rated 2TB drives. It is worth it if you need NAS tuning and a spare; otherwise a single Seagate may cost less.

Neither listing gives a workload rating or warranty, so there is no figure to compare. The WD Red Plus is the one marketed for continuous NAS operation.

Can I use the WD Red Plus in a desktop PC?

Yes. It is a standard 3.5-inch SATA drive and works in a desktop, though its NAS tuning is wasted there.

Should I buy now or wait?

The WD Red Plus is at $154.00 as of November 8, 2026, near its low of $154.00 since November 5, 2026, against a high of $309.98. That favors buying now if you need it.

Seagate 3.5-Inch SATA Hard Drive vs WD Red Plus 2TB NAS HDD

Choose the WD Red Plus 2-pack if you want a drive built for NAS use with a published sustained transfer rate and a second unit for mirroring or a spare. Choose the Seagate if you want a single general-purpose desktop drive and the 4TB option matters more than NAS tuning. The WD Red Plus 2-pack is $154.00 at Newegg as of November 8, 2026, and its price has swung between $154.00 and $309.98 since November 5, 2026, so the current figure is near the low end.

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