One glance at the front and back of the box that the W5810 comes in, finished in a natty shade of orange, leaves you in no doubt that this is a Window's based product. Along with the model number on the front here is a note about the number of clients supported by the Windows Storage Server 2012 R2 Essentials OS and a list of the devices features.
On one side of the box displays that the W5810 supports both Microsoft Azure and Office 365, data duplication, ADD (Active Directory Domain) services and has an embedded SSD. The other side of the box has an image of the front of the unit along with hardware specifications and software features.
The box bundle contains all you need to get the W5810 up and running; LAN cable, fixing screws, and three drive tray keys; giving two spare keys is a nice touch.