The HP LaserJet Pro MFP M426fdw is a black and white laser printer designed for small to medium-sized offices. It offers fast printing and scanning capabilities, automatic duplex printing, and a range of connectivity options, including Wi-Fi and Ethernet. The printer is known for its reliability and efficiency, making it a popular choice for business environments. It can handle a variety of paper sizes and types, and it's suitable for tasks such as printing documents, scanning, and copying. The "dn" in the model name typically indicates that it includes duplex (double-sided) printing as a standard feature, which is useful for saving paper. Please note that product details may have changed since my last knowledge update in September 2021, so I recommend checking the latest specifications and reviews for the most up-to-date information.