Does the hardware have an ethernet port or wifi, or does it need a usb adapter for connectivity to the internet, intranet, etc.?
MangoES - ethernet/wifi
It has a Gigabit Ethernet built in and you can use a USB Wifi adapter if you want.
You can get more information and see all the connections here: http://help.infiniteautomation.com/support/solutions/folders/14000092211
A quick suggestion is to provide the Power or Amperage(at the given voltages of 12 & 24) specs for the MangoES, since it doesn't come with one,
I had an issue where I used an under-powered supply and was having problems booting it up, requiring me to send in a ticket. The problem was alleviated when I used an appropriately powerful supply.