The Genuine HP 90W AC Power Adapter Model TPC-CA57 is a high-quality power adapter specifically designed for HP laptops. With a voltage output of 19.5V and an amperage of 4.62A, this adapter provides the necessary power for your device to function efficiently. The barrel connector tip with a pin and 3 prongs ensures compatibility with your HP laptop, while the included power cord makes it easy to use. With a sleek black design and the assurance of OEM quality, this HP power adapter is a reliable and essential accessory for your computing needs.