IB201525C IBM Laptop DC Power Jack for Thinkpad T40, T41, T42, T43, T44, T45, R50, R51, R52, R53, R54 NEW DC Jack Center pin diameter: 2.5mm with Harness/Cable IBM Laptop DC Power Jack for Thinkpad T40, T41, T42, T43, T44, T45, R50, R51, R52, R53, R54 NEW DC Jack Center pin diameter: 2.5mm with Harness/Cable