SKYVAST 45W 19.5V 2.31A AC Adapter Power Charger for Dell Ultrabook XPS 12 13 L221X L321X L322X AA45NM131 with Extra USB Port Output:19.5V 2.31A 45W, Connector tip: 4.5*3.0mm Extra USB Port for Phone and Tablet Portable Size: 105 x 41 x 27 mm Replacement for Dell Ultrabook XPS 12 13 / 332-1827 AA45NM131 LA45NM121 Exchange/Refund Policy: Free exchange/refund within 12 months