Aspects control data transfers within group of networked devices. The devices are assigned a power values indicative of a relative quality of power supply, connection values indicative of a relative quality of network connections available, and master state values as a function of a comparing historical usage data. The devices with a highest combination value generated from the assigned master state, power and connection values is set as a master device to receive the data item and transfer the data item to each of other devices as client devices relative to the master device.