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WD WDBZVM0040JWT-NESN 4TB 2-Bay My Cloud Mirror Personal Cloud Storage

  • Free mobile and desktop apps
  • Gigabit Ethernet
  • PC/Mac compatible
  • DLNA 1.5 & UPnP certified
  • 1.2 GHz processor; 512 MB memory
  • Dual USB 3.0 expansion ports
  • iTunes support
  • Auto network discovery
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Learn more about the Western Digital WDBZVM0040JWT-NESN




Port RJ-45
1 x 10/100/1000M
Port USB
2 x USB3.0


1.2 GHz
Default/ Max. Memory

Hard Drive Performance

Included HDD Capacity


AC input voltage (AC adapter): 100-240 Vac
AC input frequency: 50-60 Hz
DC output: 12Vdc, 3A


Twice the data protection for all your computer files

Upload, access, save and share photos and videos from your mobile devices

Free up space on your mobile device

User-selectable drive management with Mirror Mode (RAID 1 - default mode), RAID 0, spanning and JBOD modes

Streaming photos and videos to your DLNA/UPnP - certified connected TVs, media players and gaming consoles

Blazing-fast file transfers

Expandable storage

Centralize your music collection and play it on any computer with iTunes

Easy to set up, easy to find on your network

Dimensions / Weight

6.75" x 6.10" x 3.90" (H x L x W)


5°C - 35 °C

Package Contents

Package Contents
Personal cloud storage
Ethernet cable
AC adapter
Quick Install Guide

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the Western Digital WDBZVM0040JWT-NESN

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  • Clarke G.
  • 7/23/2014 3:49:30 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsSo far- performance is disturbing

Pros: ease of setup

Cons: so far slow.

Other Thoughts: Main concern for me is some processes that are running on the device which are hogging CPU usage. Despite all my cloud and sharing services turned off (this nas is for data and to work directly off of), there is a wdphotodbmerger process that is consuming 50% of the cpu or more whenever I seem to need to work on things. I have owned a 3tb and 2tb my book live prior and performance allowed me to rename files and save small documents lickety split. At first I thought this was due to the raid mirror setup. But after seeing the processes running and their cpu usage and doing some online research, this is a known issue and a very debilitating one considering performance is tantamount for me.

Let me turn off this service, or make it not run when I have sharing disabled. Supposedly its generating thumbnails for teh wd2go/cloud apps. Which I don't intend to use.

Maybe I am wrong though, maybe its the NAS mirroring causing this slowdown? But its much slower than the my book live I was working off of before and performance was acceptable. I upgraded to this reading that performance was the same but this offered the data protection of raid. WD if you are reading this, please help.

Manufacturer Response:

Greetings Clarke,
Thank you for your feedback on the My Cloud Mirror. We recently released a new firmware update for your device and would like for you to verify if this update has been applied yet, as this could assist in addressing your concerns.
“How to manually or automatically update the firmware on a WD My Cloud, Mirror, EX2 or WD My Cloud EX4 Personal Cloud drive”:

If after you have verified and/or update your firmware and the issue should persist, please contact our support team by email or phone below and reference this Newegg review.
(855) 556-5117

Did you find this review helpful? Yes No

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