Products trademarked iTEKIRO are marketed and sold exclusively by EPMUSA at Amazon.com. When attached to the electrical outlet, this notebook AC adapter laptop charger powers your notebook and charges your laptop battery whether your notebook is on or off. Input: AC 100 ~ 240V / 50 ~ 60Hz, worldwide compatible; Output: 150W Max - 19VDC 7.9A or 19.5VDC 7.7A (Replacing Delta 150W adapter); Dimensions: 6.5" x 3.3" x 1.75"; Weight: 26.5 oz. Please note the adapter is not original, it is a replacement made by iTEKIRO. Your purchase of this adapter comes with 100% satisfaction of 30-day money back and 1 year replacement warranty, plus a complimentary 10-in-1 USB charging cable for smart cell phone..