The AC Adapter Power Supply 0957-2271 from HP is a black AC/DC printer adapter specifically designed for use with HP Officejet printers. It has an output current of 1560mAh and a voltage output of 32V, making it compatible with various HP printer models such as the 4500, 6000, 6500, and 7000 series. This power supply is a reliable and high-quality accessory for ensuring uninterrupted printing functionality for your HP printer. Made in China, this adapter is a dependable choice for powering your printer efficiently.