A module for an aircraft turbine engine , the module comprising a longitudinal axis (X) and comprising: - a hub extending around the longitudinal axis (X) and movable in rotation around the longitudinal axis (X), - vanes carried by the hub , each of the vanes being movable about a pitch axis (C) extending radially with respect to the longitudinal axis (X), - a drive shaft designed to drive in rotation the hub about the longitudinal axis (X), - a mechanical speed reducer configured to connect a low-pressure shaft of the turbine engine to the drive shaft , and - a device for changing the pitch of the vanes about their pitch axes (C), the device comprising: ∘ a hydraulic actuator movable in rotation about the longitudinal axis (X) and configured to drive the vanes about their pitch axes (C), ∘ a pump for supplying fluid to the hydraulic actuator comprising a transmission shaft and an envelope arranged around the transmission shaft and secured in rotation to the drive shaft , and ∘ an electric machine comprising a rotor secured in rotation to the transmission shaft and a stator fixed in rotation about the longitudinal axis (X), the stator being intended to be connected to an power supply cable , characterised in that the speed reducer comprises a first element designed to cooperate with the low-pressure shaft , a second element secured in rotation to the drive shaft and a third element fixed in rotation about the longitudinal axis (X), and in that a passage for the power supply cable is provided in the third element of the speed reducer . - a hub extending around the longitudinal axis (X) and movable in rotation around the longitudinal axis (X), - vanes carried by the hub , each of the vanes being movable about a pitch axis (C) extending radially with respect to the longitudinal axis (X), - a drive shaft designed to drive in rotation the hub about the longitudinal axis (X), - a mechanical speed reducer configured to connect a low-pressure shaft of the turbine engine to the drive shaft , and - a device for changing the pitch of the vanes about their pitch axes (C), the device comprising: ∘ a hydraulic actuator movable in rotation about the longitudinal axis (X) and configured to drive the vanes about their pitch axes (C), ∘ a pump for supplying fluid to the hydraulic actuator comprising a transmission shaft and an envelope arranged around the transmission shaft and secured in rotation to the drive shaft , and ∘ an electric machine comprising a rotor secured in rotation to the transmission shaft and a stator fixed in rotation about the longitudinal axis (X), the stator being intended to be connected to an power supply cable , ∘ a hydraulic actuator movable in rotation about the longitudinal axis (X) and configured to drive the vanes about their pitch axes (C), ∘ a pump for supplying fluid to the hydraulic actuator comprising a transmission shaft and an envelope arranged around the transmission shaft and secured in rotation to the drive shaft , and ∘ an electric machine comprising a rotor secured in rotation to the transmission shaft and a stator fixed in rotation about the longitudinal axis (X), the stator being intended to be connected to an power supply cable , characterised in that the speed reducer comprises a first element designed to cooperate with the low-pressure shaft , a second element secured in rotation to the drive shaft and a third element fixed in rotation about the longitudinal axis (X), and in that a passage for the power supply cable is provided in the third element of the speed reducer . <EOS>