WD My Cloud EX4 Personal Cloud Storage 12TB (4x3TB) Hard Drive, 2GHz, 512MB RAM, RAID Supported, 3 USB Ports

WD My Cloud EX4

WD My Cloud EX4 Personal Cloud Storage 12TB (4x3TB) HDD, 2GHz, 512MB RAM

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WD My Cloud EX4 

Buy: WD My Cloud EX4 Personal Cloud Storage 12TB (4x3TB) Hard Drive, 2GHz, 512MB RAM, RAID Supported, 3 USB Ports Storage Type: Home Network Storage

I did my research before purchasing a NAS.  I did not like the write speeds on this device, but after thinking about it and comparing prices/features I decided to go with the EX4.  This weekend I'm setting it up and overall it is a great machine with a bunch of features.

The only complaint I have so far is that I attached a 2TB hard drive via USB directly to the unit and the percentage complete shoots up to 96% in less than an hour.  After waiting an hour for the 4% to complete I thought something was probably wrong so I cancelled the backup, rebooted and started it again.  I should have done my research before rebooting it.  After researching this problem I found out it is not stuck and it is not 96% complete.  Hopefully this is the worst problem/quirk I run into.  Otherwise so far so good!

Overall I like it!

This machine never worked right from the time it was delivered.  It rebuilt the RAID on every boot, and took four attempts to update the firmware.  Finally, I got a SMART fail notice on one of the drives.  When I contacted WD tech support, they wanted my credit card to quick ship (5 to 7 business days!) a new drive, otherwise I'd have to send in the bad one and wait for them to send me a new one.  They refused to respond any quicker, citing "company rules".  That made it easy; I'm sending it back immediately

Disappointing

added this as a backup device.

works as expected, no issues