About this item Built with a multi-layer intelligent protection system: including over-voltage, over-current, short-circuit, and temperature control the charger continuously monitors power output to protect your device and ensure stable, safe charging at all times. Superb Compatibility: Fit for Lenovo laptops with round power connector and power of 65W and 45W, series incl. fit for IdeaPad, Yoga, Flex, Chromebook and more. Superb Compatibility: Compatible with various Lenovo models including Ideapad 3, 1, 5, 330, 330S, S340, S145, 320, 310, 510, 520, Flex 5, 4, 6, 14, Yoga 710, N22, N23, N42, V14, V15, V17, 110, 120, 130 laptops. Power Specifics: Output Max - 65W, 20V-3.25A, compatible with Lenovo 45W laptop; Input Range: 100-240V, 50-60Hz. Dimensions: 2.6 x 2.1 x 0.1 inches.