Features:You can connect this adapter between old type round jack to latest laptop with square DC input port.Easy plug and use.5.5 x 2.5mm female round jack can fit most of the universal AC adapter DC output jack.Suitable for ThinkPad T440/t440p/t450, T460, X230S/S3/S5/X1/E431.Type: Power Converter for Lenovo ThinkPadMaterial: ABS+MetalQuantity: 1PcCompatible with: for ThinkPad T440/t440p/t450, T460, X230S/S3/S5/X1/E431Size: 46mm x 15.5mm/1.81" x 0.61" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes1 x Power Converter for Lenovo ThinkPad#Cablesconverter #Charger #Computers #Computerstabletsnetworking #Laptop #Laptop&DesktopAccessories #Laptoppoweradapterscharger #Lenevo #Powerplug #Thinkpad