The safe operating temperature range is from 5 to 45 degrees Celsius.

For APC (8750), the time resets as there is not a battery on-board. As long as you have an Internet connection though, the time will be automatically updated when you restart. For both APC Rock and APC Paper this is not an issue as they come with an on-board battery.

Yes, APC can handle between 9v to 12v DC.

Yes, there is a four pin Molex port which can be used to power APC.

No, APC can only be powered through the adaptor.

APC Paper and Rock come with a 13.5W, 12V/1.5A power adaptor and APC 8750 comes with a 13.5W, 9V/1.5A power adaptor (When purchased through the apc.io website). Just plug it in and the system runs. (APC Rock and APC Paper ship with standard US and European head adaptors.)

APC consumes 4 watts when operating at idle power and 13.5 watts at maximum load. This is ten times less than a standard PC system and ensures significant power savings in large scale deployments.