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

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.

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.

I haven't seen any issues with them yet. Just some warnings of the Pending Sector count in the SMART readings for one disk. (Likely due to sudden power outages) Highly recommend buying this brand.

I have four of these HDDs running and have had two of them running 24/7 for almost three years

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.

drives have been running great, I have 4 in a RAID 5 setup and they are running quietly with no issues on SMART tests. Transfer rate of approx. 450MB/s in Raid 5 read test which works perfect for my home NAS server

Not working / corrupted and returned the disk to WD for replacement. Packing was not sufficient and loose packing.

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).