An electrical connector includes a base with a number of contacts, a cover pivotally mounted to the base, a pair of supporting components for mating with the cover and a pair of rail brackets for mating with the base. Antibodies and fragments, which may be conjugated or naked, are used alone or in multimodal therapies. An electromechanical commutator is used to direct current between an outside source or sink through brushes to rotating multiple contacts simultaneously. Additionally, at least one of the blocks is selected. The slowing device is adapted to slow movement of the set of lifting arms when the cover is moved. The first semiconductor device is configured to terminate the first IO pad with a first voltage when data is received, and maintain the first IO pad and the IO channel at the first voltage when data is transmitted.