6.3 x 3.0mm DC Male to 5.5 x 2.1mm DC Female Power Plug Tip for Toshiba Portege M100 / R200 Series Laptop Adapter Tips: 6.3 x 3.0mm Suits for laptop adapter: Toshiba Portege M100 / R200 / 4000 / M700 Series, Toshiba Satellite 5000 / 5200 / Series, Toshiba Satellite M10 / M20 / M30 / M40 / M50 Series, Toshiba Tecra TE2000 / TE2100 / TE2300