Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices.
Western Digital Red Plus 4TB HDD Hard Drive 3.5" SATA III 5400rpm with 128MB Cache for NASCode: 27485485
Similar products
HDD Hard Drives
Seagate Barracuda 2TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Desktop
Ad from The RabbitAdded
Top ratedHDD Hard Drives
Western Digital Blue 2TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Desktop
Ad from Smart PCAdded
Top ratedHDD Hard Drives
Western Digital Blue 1TB HDD Hard Drive 3.5" SATA III 7200rpm with 64MB Cache for Desktop
Ad from Smart PCAdded
Top ratedHDD Hard Drives
Western Digital Purple 4TB HDD Hard Drive 3.5" SATA III 5400rpm with 256MB Cache for Recorder
Ad from TechstoresAdded
HDD Hard Drives
Seagate Barracuda 8TB HDD Hard Drive 3.5" SATA III 5400rpm with 256MB Cache for Desktop
from 129,99 €Added
HDD Hard Drives
Western Digital Red Plus 4TB HDD Hard Drive 3.5" SATA III 5400rpm with 256MB Cache for NAS
Ad from Smart PCAdded
HDD Hard Drives
Seagate Ironwolf Pro 4TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for NAS
from 115,57 €Added
HDD Hard Drives
Seagate Skyhawk +Rescue 4TB HDD Hard Drive 3.5" SATA III with 256MB Cache for Recorder
Ad from Smart PCAdded
HDD Hard Drives
Seagate Ironwolf 8TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for NAS
from 179,99 €Added
HDD Hard Drives
Seagate Exos X18 16TB HDD Hard Drive 3.5" SATA III 7200rpm for NAS / Server
from 278,93 €Added
HDD Hard Drives
Western Digital Red Pro 4TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for NAS
from 137,74 €Added
Description
Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files.
For Small or Medium Businesses
NASware 3.0
Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability.
Manufacturer
Western DigitalSpecifications
- Product Number
- WD40EFZX
Compatibility
- Use
- NAS
Product Details
- Capacity
- 4000 GB
- Communication Protocol
- SATA III
- Recording Technology
- CMR
Performance
- RPM
- 5400 rpm
- Cache size
- 128 MB
Dimensions
- Form Factor
- 3.5 "
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
Reviews
- This review is about the cache size: 256 MB
They are simply unacceptable at WD. I bought it from Plaisio and after 1 month suddenly it asks me to format it, with files for professional use. The disk was replaced. The second time I format it and realize that it was 2TB instead of 4 (it said 4TB on the outside). I took it for replacement and again the same thing. I was probably unlucky and fell into the bad batch.
Translated from Greek ·- Speed
- Reliability
- Noisy
- Temperature
- Value for money
Did you find this review helpful? - This review is about capacity: 6000 GB, cache size: 256 MB
Excellent disk for NAS, installed 6 in Synology DS1821+ without any issues for a while now. Note, because it was mentioned in the comments and to avoid confusion: The disk is a regular CMR and not SMR as mentioned somewhere. WD also states this in the specs. It fully replaces the EFZX. Only the EFAX is SMR and it is not classified as a Plus.
Translated from Greek ·- Speed
- Reliability
- Quiet
- Temperature
- Value for money
Did you find this review helpful? - This review is about the capacity: 6000 GB
I have a pair inside NAS. The only thing I have noticed is that they are heard at regular intervals, as if the NAS is accessing something that was not happening with the corresponding 4TB ones that were replaced
Translated from Greek ·- Speed
- Reliability
- Temperature
- Value for money
- Moderate noise
Did you find this review helpful? Installed in raid ZFS, it is one of the 5 disks in the array. All the other disks are old and simple, not NAS. So it is the only one out of the 5 that shows errors, it needs resilvering at least once every 10 days. Fortunately, no data is lost (yet) and there hasn't been a permanent physical damage to the disk, so I can't even ask for a replacement. It may be more suitable for simple use. Get informed before purchasing it.
Translated from Greek ·- Quiet
- Temperature
- Speed
- Reliability
- Value for money
Did you find this review helpful?- This review is about capacity: 2000 GB, cache size: 64 MB
Initial impressions: it is difficult to hear it in continuous operation. The temperature remained at 33 C after hours of backup (of course with the help of a fan inside the HDD case). However, I recommend the EFZX series because it is CMR. Due to lower cost, SMR will soon be the only available option. As for reliability, time will tell.
Translated from Greek ·- Speed
- Quiet
- Temperature
- Value for money
Did you find this review helpful? A disk for NAS at a reasonable price.
It is quiet, you can only hear the disks spinning after waking up from standby for 2-3 seconds. Out of the 10 I bought, one arrived dead, but WD replaced it with a new one within 3 days through RMA.In terms of speed, it's fine for a 5400 RPM with only 128MB. In RAID 5 with 10Gb/s LAN Aggregation, it consistently writes/reads at around 146 MB/s. With SSD cache, it can reach up to 180 MB/s. The temperature ranges from 25 to 35 degrees Celsius, but I haven't tested it without air conditioning during the summer yet.
The only negative thing I noticed is that it takes about four hours to synchronize and build the RAID in NTFS and EXT4. For BTRFS, it took over 8 hours. I don't understand if this happens only during the initial RAID build or if every time a disk needs to be replaced it will take 8+ hours. Because if it really takes 8+ hours, then every replacement will be a heart-stopping moment, fearing that another disk might fail or that the data in the RAID will become unreadable. Despite being CMR.
Now, if someone wants to use BTRFS for RAID, they should be aware, but I guess it could also be an issue with my setup.
Edit: Now that it's summer and I've seen the temperatures, they reach around 48 degrees Celsius without air conditioning in the NAS with the same 10 disks and only the two 90mm fans running.
Edit2: The problem with the slow RAID in BTRFS turned out to be an issue with the NAS, which was resolved after a newer update was released.
In terms of durability, they haven't had any issues for a year now. They don't have problems with bit-rot or producing errors. They work properly in BTRFS with Clone, Snapshots, and Cold Backup.
Translated from Greek ·- Reliability
- Quiet
- Temperature
- Value for money
- Speed
Did you find this review helpful?Verified purchase
Verified purchase
This review is about capacity: 6000 GB, cache size: 256 MB- Speed
- Reliability
- Quiet
- Temperature
- Value for money
Verified purchase
Verified purchase
This review is about capacity: 2000 GB, cache size: 64 MB- Speed
- Reliability
- Quiet
- Temperature
- Value for money
Verified purchase
- Speed
- Quiet
- Value for money
- Reliability
Verified purchase
- Speed
- Reliability
- Value for money
- Moderate noise
- Temperature
Verified purchase
- Speed
- Reliability
- Quiet
- Temperature
- Value for money
Verified purchase
- Speed
- Reliability
- Quiet
- Temperature
- Value for money
Technology
Home & Garden
Fashion
Sports & Outdoors
Health - Beauty
Baby & Kid
Auto - Moto
Business - B2B
Books
