Customer Ratings & Reviews

I ordered two of these in 4TB capacity to use in my Synology DS220j NAS. No problems getting them formatted and set up in the Synology Hybrid Raid (SHR). So far these seem to run cool and fast. When copying data I was hitting the 1 gigabit transfer limit of my local network. Will update if anything changes.

I recently purchased a NAS by Synology, the DS415+. I researched HDD drives and found the Red series by Western Digital to be exactly what I needed: fast read/write speeds, reliable, and good value. I saw the same drives on another website at a lower cost. However, BestBuy offered me a price match, and I also opted to have them ship my drives to the local store so I wouldn't have to wait for shipping. Quick and painless; good deal!

I got this drive because I've wanted to set up a NAS unit with a good drive instead of a portable drive as they don't seem to last. This drive works great, it's much faster than I thought it would be and very cool & quiet.

Let me start by saying that this drive is a great value when considering the capacity for the price per Gigabyte. If my math is correct it is about $0.03 per GB of storage. The WD Red series have great capacity for the Network storage niche. I have been using Western Digital drives to store my important files and information for over 10 years now. I have yet to have a drive fail on me from WD. I still have all my older drives. The only thing that changes is capacity. Western Digital's warranty is great too!

I really like the Western Digital brand and the RED NAS drives really pack a lot of stability and storage into a consumer affordable package. I'm not currently using RAID with this but plan to eventually build out a real NAS when I can afford another 1 or 2 of these.

These drives are what I installed in my WD MyCloud EX4 and with the deal I got through Best Buy I was able to get a fifth drive for free which gives me a cold spare on standby should one of the drive fail for some bizarre reason. Can't beat it!

Hard drive was exactly as expected. It was an easy install into my QNAP NAS, the screws all aligned correctly, and following the instructions got everything working with no trouble. We've had no problems at all.

I was skeptical of paying so much for such little storage because I always hate when a typically reasonably priced item is branded "x". As such all the reviews I have read said that you should buy NAS branded drives for their speed, efficiency, and reliability. So I did, and so far I am not disappointed. My initial setup is not in a RAID configuration because right now I just need the space, however I plan to add an additional 16GB and place that in a RAID 5 configuration.

This NAS drive has been pretty reliable, but they seem to fail once the warranty expires after three years. This model has been replaced by an newer Red drive, the WD40EFAX which uses SMR technology, this drive uses CMR technology. While WD does not state it, you CANNOT mix CMR and SMR in a drive array as it will cause errors. The SMR drive also takes a lot longer to rebuild in an array. Unfortunately, if you want to buy a CMR drive you will now to buy the Red Pro line of NAS Drives.

Purchased 4 of these for my NAS drive and the performance and reliability has been great. Will always buy WD drives. Very reliable and great performance.

I have purchased previous versions for nas systems and they are currently running. Price is still high for the TB. Better value in 3tb

Popped these 4TB drives into my NAS and so far they passed all tests and are running fine. I had to replace a 3TB red that started reporting SMART errors after only 2 years and I'm hoping these will have a longer life.

Always use WD drives for my NAS drive. Love them, always ship good.

Needed this to replace a dead WD green that was in one of the external "book" cases. Case board died, drive died and i had to send it out to a recovery service (a really cheap and good one that starts at $300 for anyone that's interested, just search $300 Recovery as part of the name, they are in CA) and needed this new Red one as a replacement. So far so good and now running a continuous backup service online. No more losing data for me.

Great price, Great HDD. Could not have asked for more.

Have this set up in a RAID. Quiet, does not generate much heat. Transfer speed of about 110 MB/sec for large files. Got it on sale for $120, or about the same price as a run of the mill WD blue.

This is a very good HD as NAS. I hooked it up to my brand new Dell Server and it seems to run quite fast.

It's hard to beat the value on these WD Red drives. I'm using them in a Synology NAS. Should last a long time with two 4TB drives.

Excellent Drives. I use this in my custom built PC for storing large file and backups of videos/photos/etc and it has served me well.

I use this hdd on my qnap ts-451+ and so far it has been working great, no damaged sectors or errors at all. It is very quiet as well.