HP 90W Smart AC Adapter for Laptops (Black) Brand new and authentic HP products ship from and are sold by Amazon.com (check above). Smart-pin technology: Power up with confidence and reduce the risk of power surges, while drawing only minimal power as needed. 4.5 mm (F) - 7.4 mm (M) dongle included: Easily connect to older laptops with a 7.4 mm connector. Right-angled (90-degree) 4.5 mm connector: Connect in tight spaces and reduce cord bending for better cable management and longevity. Compatibility: Works with HP laptops with 4.5 or 7.4 mm connector. Size: 4.92 x 1.97 x 1.18 inches (125 x 50 x 30 millimeters). Weight: 0.72 pound (0.33 kilogram)