The dgs 1008d green ethernet version is an 8 port unmanaged gigabit switch that consumes less energy than conventional switches of the same specificationthe dgs 1008d green ethernet version reacts when a device attached to it is turned off by placing the corresponding port in a standby mode that requires less powerin addition the switch is able to detect the ethernet cable length and adjust power usage accordingly hence saving any surplus power that would otherwise dissipate as heatall