Mechanical hard disk drives have been around for decades now but it wasn't until the introduction of the first NAS (network attached storage) and digital NVR (network video recorder) models that the need for different models was even considered by manufacturers.

- Build Quality (MTBF Of 1.000.000 Hours; - Good Read/Write Performance; - NASware 3.0 Features; - Low Temperatures; Noise Levels & Power Consumption; - 24/7 Support & 5 Years Warranty

- Overall Performance & Price (Compared To the Competition

WD Red drives are my go-to standard for when I need a drive for a NAS setup. I use these with FreeNAS with great success. Internal in an average system, I get gt;100MBps using rsync from one array to another.

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.

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

Swapped out an old 3tb green drive for this. Western Digital has the best reputation and the drives are affordable.

Ordered 2x 4TB Drives. Despite telephone and email confirmation (prior to order) that these hard drives are sold in Western Digital RETAIL packaging.... they are NOT. Received in folded cardboard with layer of protective foam - inside a jiffy bag (which had split along the seam half way).

Don't skimp on your NAS drives. These are worth the extra cash.

Disc arrived for the ReadyNas Nas storrage and have worked without and problems since install - 3 weeks ago So no early life failures.