This is a 130W AC adapter with a 4.5mm round tip connection. It is designed to be compatible with Dell XPS 15 models 7590, 9530, 9550, 9560, 9570, OptiPlex models 3050, 7010, 7020, 7050, 5060, 5450, and 9020, as well as Inspiron and Precision models 5510, 5520, 5530, and 5540.

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