Top Safety: Certified and listed by UL - the national gold standard of electronic safety in the US, as this replacement charger fit for Lenovo laptop meets the highest safety and quality level in the industry - a hard-to-earned level only very few in the market have reached. Superb Compatibility: Fit for ALL 170W-135W Lenovo Thinkpad Yoga Legion laptops with Slim tip power connector, model e.g. Lenovo Thinkpad T15g T15p P15v P16v P15 P16 P17 Gen 3 2 1, P1 Gen 1 2 3 4 5 6 7, X1 Extreme Gen 1 2 3 4 5, P70 P71 P73 P50 P51 P52 P53 W540 W541 T440 T440S T440P T540p Laptop and more.