This convenient cross over sharing switch allows you to switch two USB devices and share them between two computers. A1, B2 or A2, B1 where 1 and 2 are type A connections and A & B are type B connections.*Monoprice continually strives to improve its product line to bring our customers the best products available. Therefore, changes may be made to listed specifications without prior notice. Item received may not match photo or specs shown.