Safety - Passed stringent safety tests to ensure you and your devices' safety. Compatible with Samsung Galaxy Book Flex 2 Alpha 13.3 NP730QDA-KB1US KB2US KB3US NP730QDA-KA1US KA3US Guarantee - Within 30 days of purchase, we offer a no-questions-asked replacement guarantee and a 360-Day-Quality-Guarantee by the Manufacturer. Package - 1 X power cord Output Max - 19V 2.1A Input Volt Range - 100-240V