Customer Ratings & Reviews

I bought the WD Red Plus 4TB for my home NAS running TrueNAS, and it’s been rock solid so far. The drive runs quietly, stays cool, and has been working 24/7 without any issues. I’m using it in a RAID setup, and the performance is great — good read/write speeds and all SMART values are healthy. If you’re building a home server or upgrading storage, this is a solid choice. I’m already planning to grab another one to expand my array

You see this? You want this. You know why? It's a Western Digital, start there. It's a Red Plus = Fast, reliable, NAS. It's the right price. AND It's the actual best model offered... It's the WD40EFPX model, meaning... - It's a CMR drive (not the cheaper, less reliable and slower SMR drive). - It has a 256mb buffer (not 128mb) - It's a PLUS series... Faster than Red, slower than Pro, still super fast for an HDD. - It's built to last... for servers, RAID and home use. Oh, and it's almost the same price as a Blue (entry level). Bottom line, for backup and daily access... GET THIS!!!

I purchased this drive to back-up a boot drive and all of its data (slaved and then disconnected). I reconnected it many times over the months when I hit a mandated data back-up date. So far, the drive is fast and dependable. If there is an option to update this review in the future - I will do so. Great drive, so far.

I recently purchased 4 of these to replace the old drives in my 7 yr. old EX4100 NAS configured to RAID 5. I hope the new ones hold up just as well. Had issues backing up loads of data and then uploading. I believe the bugs were not in the drives but issues with the other devices and wifi. WD support was excellent and attentive. Take pics of the serial numbers before installing.

I picked up the 4TB model (WD40EFPX) for a small Synology setup running RAID 1, and after several months of use, there's genuinely not much to complain about. It's a CMR (Conventional Magnetic Recording) drive, which matters. WD caught flak a few years back for quietly shipping SMR drives under the Red label, but the Red Plus line uses CMR across the board. That means better sustained write performance and more predictable behavior in RAID rebuilds, which is exactly what you want in a NAS.

More space for my video editing, Love the Red Plus from WDC pretty reliable bought four durning the pandemic, planning to build small NAS server for home office.

i have thousands of photo and many GB of files ,, that i need lots of space ,, so this fits in my dell 8940 slot as a just perfect just fit .. however, i am always wary of using very large disks to store TB of files and lose if it breaks ,, 4TB is just about the max size i will use .. so far with 1.5TB moved on it and working for the last 2 weeks .plus bought this on BB sale. and then got a lower price next day when it went on sale again with BB price match .. for a great deal from BestBuy

I had a WD EX2 NAS drive with one slot filled with a 4tb WD Red Drive. Added this one to give me twice the storage for backup. It was easy to format using the EX2 software. Works great, as long as you use two drives that are the same size.

Always pleased with these WD drives. Most reliable drive that I use

New drive with good write/read speed for the HDD. A perfect replacement for my old drive, using it with the external adapter. It is sad that a bigger drive was not in the store at that moment.

Why do I keep stopping when I use my Seagate hard drive? So I use a Western Digital hard drive. unshakable trust

Installation was as simple as it gets. Slotted both drives in, Synology recognized them right away, and the whole setup process was smooth with no weird hiccups. Built a storage pool and it’s been running quietly in the background ever since.Speed wise, for backups, media storage, and streaming, everything feels solid. Not chasing crazy speeds here, just reliable access and that’s exactly what these deliver.

The WD Red Plus 4TB drive has been rock-solid in my setup. It runs quietly, stays cool under load, and performs exactly the way a NAS-class drive should. Read/write speeds are consistent, and it handles continuous operation without any issues. For storage, backups, or a RAID array, it’s proven to be dependable and responsive. Overall, a great value for anyone needing a reliable 4TB HDD that just works.

quiet, cool and just works fantastic in my Synology NAS.

Bought this to replace failing drives on my NAS. Installation was easy and it's been running without any issues now for about 6 months.

​I bought this WD Red Plus 4TB drive to expand my storage setup, and it has been performing flawlessly. ​Performance & Quiet Operation: It runs smoothly, stays cool, and is noticeably quiet even under continuous read/write tasks. ​CMR Technology: Since this uses Conventional Magnetic Recording (CMR) rather than SMR, write performance remains steady without severe slowdowns during large data transfers or RAID rebuilds. ​Reliability: Western Digital’s Red Plus line has always been a dependable workhorse for 24/7 environments. ​Overall, it offers fantastic value for money, great endurance, and absolute peace of mind for home media servers or multi-bay NAS setups. Highly recommended!

Purchased from Best Buy and using it in my NAS; the SanDisk 4TB HDD delivers consistent performance, runs quietly, and has proven to be reliable for continuous use.

Had this running in a Ugreen NAS for a while now and works great. Lots of storage and good transfer speeds. Looking to get a second one with more storage now.

WD Red drives work well. They last a long time and have solid performance. Years of worry free service. Easy to install.

Works perfectly, is quick yet silent. Would strongly recommend for your NAS.