This tip ships with the ThinkPad and Lenovo 90W Slim AC/DC Combo Adapter (41N8460) but is also available as a spare or replacement part.Compatible with the following notebook models: ThinkPad A20 / A30/ R30 /R30 / R40 / R50 / T20 / T30 / T40 / X20 / X30 / X40 series Backed by a 90 day limited warranty.