This AC power adapter is a reliable and efficient solution for powering your devices. The adapter has been tested and proven to work effectively, making it a great choice for anyone in need of a reliable power source. With a connection split/duplication of 1:9 and an output voltage of 19V, this adapter is perfect for use with a variety of devices. In addition to its reliability and efficiency, this adapter also features a powered design, making it easy to use and transport. Whether you're at home, in the office, or on-the-go, this adapter is a great choice for all your power needs.