WD My Cloud EX2 Ultra NAS Review

  1. About the WD My Cloud EX2 Ultra...
  2. External Impressions
  3. How its tested?
  4. JBOD Testing
  5. RAID 0 Testing
  6. RAID 1 Testing
  7. Conclusion
  8. Online Purchase Links

Disclaimer: This review unit is provided by WD

About the WD EX2 Ultra…

Earlier, the WD My Cloud EX2 NAS was tested. Naturally, you’ll ask what’s different with the WD My Cloud EX2 Ultra. The EX2 Ultra has a larger 1 GB RAM. Rest of it is the same. It uses the Marvel Armada A370 clocked at 1.2 GHz, it has JBOD, Spanning, RAID 0 to 10 support and the same housing. As always My Cloud has the same type of Disk and diskless choices, depending on your preference in storage capacity and budget.

The WD My Cloud EX2 Ultra’s packaging is no different from the EX2. This variant has two WD 4TB WDEFRX Red drives preinstalled. The foam on the NAS should be adequate to protect from any potential damage during transit. WD provides few packaging materials, a power socket with two plug options and an ethernet cable. There’s no installation disc but it is better to just get the required installers from WD’s website. The disk variant of the WD NAS units should have the firmware installed so its a matter of getting the WD installer and let it detect it.

The EX2 series have two USB 3.0 ports. This is a great add-on which has been in NAS units for a very long time.


  • Gigabit Ethernet
  • USB 3.0 expansion port (x2)
Height:6.75 in (171.45 mm)
Depth:6.10 in (154.94 mm)
Width:3.90 in (99.06 mm)
  • 16 TB 5.0 lbs (2.3kg)
  • 12 TB 5.2 lbs (2.4 kg)
  • 8 TB 5.0 lbs (2.3kg)
  • 4 TB 3.4 lbs (1.6kg)
  • 0 TB 1.8 lbs (0.8kg)
  • Windows® 10, Windows 8, Windows 7
    or Windows Vista® operating systems
  • Mac OS® X El Capitan, Yosemite, Mavericks or Mountain Lion operating systems
  • DLNA®/UPnP® devices for streaming
  • Router for Internet connection
  • 16 TB WDBVBZ0160JCH
  • 12 TB WDBVBZ0120JCH
  • 8 TB WDBVBZ0080JCH
  • 4 TB WDBVBZ0040JCH
  • 0 TB WDBVBZ0000NCH
  • Network Attached Storage
  • Ethernet cable
  • AC adapter
  • Quick Install Guide
  • Operating temperature: 5°C to 35°C
  • Non-op. temperature: –20°C to 65°C
• Internet Explorer® 10 or higher
• Safari® 6 or higher
• Firefox® 30 or higher
• Google Chrome™ 31 or higher on supported Windows and Mac OS platforms
  • Pre-configured: 3 years Worldwide
  • Diskless: 2 years Worldwide

Note that the pre-installed WD EX2 Ultra carries a three-year warranty, while its diskless version is with a two-year warranty.

1 comment
  1. i think you have a typo because I get same values of writing speed in RAID 1 but in Mbps not MB/s

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