Mitsubishi FX5-ENET is a network module for the FX5 series PLCs — it adds Ethernet connectivity to the controller. It sits on the PLC's internal bus, fed from the base power supply at 24 V DC, drawing 110 mA.
Mounts directly on the FX5 CPU base unit or expansion adapter. No separate power supply needed — it pulls 110 mA from the backplane 24 V DC supply. Keep that draw in the power budget when stacking modules on the same base.