Atmocube should be powered with 5V @ 2A USB-C power adapters.
Atmocube also has a PoE version which is Power Over Ethernet IEEE 802.3at 13-W PD Type 1 complaint. If PoE is desired, make sure you have the proper version, otherwise, the device will not be able to support Power Over Ethernet.
Atmocube also has a direct wiring option for building installations (24V AC/DC). If using direct wiring, please make sure you have a trained electrician handling any wiring procedures with the device to avoid causing damage.