The WD Red 4TB is specifically developed with the use in NAS devices in mind, so you shouldn't use it in a desktop PC. Western Digital claims that the disks have been optimised for a usage scenario of 24 hours a day, 365 days a year thanks to the NASWare firmware.

WD's Red 4TB HDD expands on the company's current offering with 33% more raw storage capacity than previously available in the same 3.5" form factor with a 6Gb/s SATA interface. The WD Red line also features 1TB, 2TB, and 3TB models, but now consumers and small businesses with one- to five-bay NAS...

At 4TB; this is now the largest hard drive available from WD that is tuned for NAS applications; Performs better than the Seagate NAS 4TB and the WD Red 3TB in single-drive benchmarks; Ranks very well in a multi-drive RAID5 setting in our Synology NAS environment

Slipped behind the 4TB Seagate NAS HDD in multi-drive small block sequential transfer speeds

Western Digital's RED series is quite unique since it was from the ground up for home-use RAID environments and to compliment WD's other NAS-centric products like the SE and RE . This is very much a middle-of-the road type product which hopes to bring mass storage to a desktop environment for those...

I bought 2 of these to extend my NAS. Plug them in, fire it up, doing a backup in 10 minutes. Lifespan??? I've only had these spinning for a couple of weeks now, but the pair of WD Red 3TB already in there have been spinning for a year with no errors, and I don't expect these to have issues either.

The performance of the 4TB is a very good enough on most counts for a network storage drive. The performance of the Red Series so far remains consistent. Even if you look at average access tests, not only it performs better than Seagate' 4TB NAS counterpart but also the WD Red 2 and 3TB variants.

"When it comes to buying cars," I explained to my friend, "it is actually quite similar to relationship choices we make. For example, I love BMWs. I rave about their attractive looks, desirable specifications, charming personality, and outstanding performance, but I would never buy one.

The seller listed the product as a pack of 20, but shipped a quantity of one. That said they agreed to issue a full refund as well as a return shipping label and issued a gift certificate for the inconvenience.

These hard drives are made for 24hr use in a Network Hard Drive systems. Well manufactured to stand the rugged environment of 24/7 abuse. Highly recommended.

Have 2 of these running in a Synology DS213J. Average temps around 27 degrees and silent. Very happy with them.

Capacity; price; designed for NAS environments

None

I purchased these drives for a NAS. They perform well and provide ample storage with great performance. I will be back for more when I need to increase my storage.