The Lenovo ThinkPad 4338 Docking Station contains pass-through and connections for notebook ports including power pass-through. ThinkPad L412, L420, L430, L512, L520, L530, T400s, T410, T410i, T410s, T410si, T420, T420s, T510, T510i, T520 (Dual Core), T520i (Dual Core), T530 (Dual Core), T530i (Dual Core), X220, X220i, X230, X230i.
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