The WD My Cloud Mirror is a great device for the average user. It comes with Mirror Mode enabled (RAID 1) which will keep your data from ever being lost. As well with handy mobile and desktop apps the My Cloud Mirror will allow you to access it from anywhere.
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Pros
Pro Mobile/Desktop app for anywhere access
Use the apps included with My Cloud to share and view your content from anywhere.
Pro RAID support
This 2-bay NAS comes with RAID 1 set up by default. This means that the two disks are exact copies of each other. If one of them fails, your data will not be lost.
Pro DLNA-cerified media server
A DLNA-certified media server allows for easy streaming of content to DLNA-certified products. With little to no set up, all certified products should work effortlessly.
Cons
Con No Folder Management
For the more organized user, there is no ability to manage your folder in the UI.