ELECBRAiN 45W 19.5V 2.31A AC Power Adapter Charger Replacement for Ultrabook XPS 12 13 13D L321X L322X Laptop 4.5/3.0mm with Extra USB Port AC Input: 100 - 240V 50 - 60Hz Output: DC 19.5V 2.31A 45W Connecter size: 4.5 mm outer diameter / 3.0 mm inner diameter with central pin Extra USB Port for Phone and Tablet Tested Units, Safety: CE / RoHS-Certified for safety,Built-in overload, over-voltage, and short circuit protection; High energy efficiency - friendly to the environment, and your laptop Elecbrain is focus On Providing Quality Power Products and Excellent Customer Service,24 x 7 Email Support,12 Months warranty, 30 Days Money Back Guarantee!Buy with confidence!