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WD My Cloud EX4 16TB: 4-Bay Personal Cloud Storage WDBWWD0160KBK-NESN

  • Reliable, high-performance, four-bay NAS for your home or small office
  • Easy to manage with a powerful dashboard, LCD display and drive status alerts
  • Award-winning desktop and mobile apps
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Learn more about the Western Digital WDBWWD0160KBK-NESN




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


Default/ Max. Memory

Hard Drive Performance

Included HDD Capacity
RAID 0, 1, 5, 10; JBOD, spanning


100-240 VAC 50/60Hz


PC/Mac compatible

Easy drive install and hot swap

Twonky 7.2 DLNA 1.5 & UPnP certified media server

iTunes support

Anywhere access from computers, tablets and smartphones with My Cloud desktop and mobile apps

Dual power and network redundancy

Optimized for WD Red drives with WD's exclusive NASware technology

Reliable, high-performance, four-bay NAS for your home or small office

Diskless enclosure for ultimate flexibility or a populated system that works out of the box

Get up and running quickly with easy drive installation or buy a populated version that works right out of the box

Easy to manage with a powerful dashboard, LCD display and drive status alerts

Award-winning desktop and mobile apps

Industry-leading third-party apps, including aMule and Icecast

Advanced serving options including an integrated file server

Media streaming to connected TVs, media players and other DLNA/UPnP devices

WD SmartWare Pro for PC users, Apple Time Machine compatible for Mac users

Dual USB expansion port to increase storage capacity

Dimensions / Weight

8.67"(L) x 8.21"(H) x 6.30"(W)
13.8 lbs


0°C - 35 °C

Package Contents

Package Contents
My Cloud EX4
Ethernet cable
Power supply and cable
Quick Install Guide

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Western Digital WDBWWD0160KBK-NESN

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  • Jordan H.
  • 1/23/2014 3:28:42 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

1 out of 5 eggsStay away!

This review is from: WD My Cloud EX4 16TB: 4-Bay Personal Cloud Storage WDBWWD0160KBK-NESN

Pros: 16 TB of network storage in a Raid 5 configuration for under $1200.

Cons: Device constantly becomes unresponsive and CPU runs at 100% with few clues as to why. Lousy user interface - Advanced configuration options are not accessible short of SSH. Could not delete some folders/files w/o SSH in to the device and working through the CLI. CPU regularly spikes to 100% causing the device to become inaccessible. Plenty of "service-bloat" with few options available to turn off poorly behaved and/or unnecessary services. If you load media files onto this device, be prepared to wait for DAYS for the device to finish indexing the files and creating thumbnails. Hope you weren't planning to use it anytime soon. Oh- Wondering what is going on? GUI is unresponsive. -No clue. Device must be rebooted constantly. I still do not trust it as a safe repository of my critical data.

Other Thoughts: I'd like to see a statement from WD acknowledging the defects of this device and committing to corrections or refunds for all end users. For the record, there is plenty of evidence from other users that the problems I've outlined here are common. Stay away!

Manufacturer Response:

Hello there Longtooth68,

Please accept our apologies for any inconvenience the concerns with your My Cloud EX4 may be currently causing you.
As a troubleshooting step, please try resetting the EX4 to factory defaults, to ensure that what you are currently experiencing is not software/OS related. In some cases, there may be a residual firmware update that did not fully complete, and require a reset of the device to clear this out.
“How to restore a WD My Cloud or WD My Cloud EX4 Personal Cloud drive to factory default settings “:

On that note, verify you have the latest firmware for your device. The procedure to update your EX4 can be found at the link below.
“Product update for WD My Cloud EX4”:

If these symptoms continue with your EX4, please contact our support team directly via email or phone, so we can work with you to investigate the issue further and try to locate the root cause of these concerns.
(855) 556-5117

2 out of 2 people found this review helpful. Did you? Yes No

  • Lois S.
  • 11/19/2013 4:18:30 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

4 out of 5 eggsValue, not speed

This review is from: WD My Cloud EX4 16TB: 4-Bay Personal Cloud Storage WDBWWD0160KBK-NESN

Pros: Features. I bought the 16tb locally 3 days ago and am impressed with the features for the money spent. Dual NICs, second power adapter available, RAID choices, can make multiple ISCSI luns, comes with 10 licenses of home backup software (that I am not using BTW). Not fast, but for the money the speed is more than fine. Anything faster with this space and features is way more than I want to spend. I played a bit with the included software and found it easy to setup data backups. It feels solid, and the drives are easy to swap out, no tools needed. It also sees Active Directory user accounts so I was able to carve up space for individual users on my domain.

Cons: It's not fast, but while it won't win races, it does chug along at a fast enough speed to run my domain controller and a SQL/WSUS server. For me, the biggest con isn't speed, it's heat. The fan, while quiet, doesn't do the job as well as I would like (maybe I can get something better in there), so I mounted a 120mm fan to the shelf right in front of the intakes. Not pretty, but the air flow is worth more to me than looks. While the backup software seems ok for data backup, it does not do disaster recovery- at least I don't see a way to boot to a recovery console to restore whole drives, even though the option is there to backup whole drives. And who wants to reinstall Windows when you have a backup of the whole drive. So I am sticking with Acronis. Aomei is a free alternative that also provides a disaster restore boot, if you don't want to spend more for backup software.

Other Thoughts: Home server is Vmware ESXI 5.5 running two 2008r2 servers, so I quickly made 4 ISCSI luns and put the two VMs and two backup locations on them (yes, have other backups on local drives). Carved up the rest for desktop backups (3 desktops, 3 laptops). Turned off the lights via the web interface as it's in the bedroom, and setup folders for AD user accounts. I am pleased that it is quiet (yea I know, that's why it runs hotter than I would like). Now I have enough space to make an entertainment server, my next project. Overall I am pleased with it, but time will tell if it holds up. It's nice to know I can hot swap a bad drive and have it auto rebuild. Will keep an eye on the heat (seems ok with the extra fan in front) but I think I got a good value.

3 out of 3 people found this review helpful. Did you? Yes No

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