IBM Lenovo Docking Station for X Series X30 X31 91P9024 !

IBM Part Number: 91P9024 Features : Security keyhole/UltraBase/Device Bay Lock Hot/warm docking support Two built-in stereo speakers Parallel, serial, USB, RJ11, RJ45, VGA, PS/2 mouse port Second battery support (for Ultrabay battery or second system. Optical drive is not included. Dimensions: Height: 2