A protective device for an electric power adapter/charger includes a trumpet-shaped support member having an inner passage along a longitudinal axis for receiving and supporting a cable of the adapter/charger to prevent bending the cable at sharp angles and an enclosure for enclosing at least a portion of the support member and at least a portion of a body of the adapter/charger to secure to the support member to the adapter/charger. The support member includes first and second portions connectable about a parting plane containing the longitudinal axis so that the support member can be laterally connected about the cable. The enclosure includes first and second portions connectable about a parting plane containing the longitudinal axis so that the enclosure can be secured about the body of the adapter/charger and clamping the first and second portions of the support member together.