Lexmark CX522ade Color Laser. Duplex (2-sided) Printing: Integrated Duplex. Print Speed: 35 ppm. Driven by a 1.2GHz quad-core processor and up to 6 GB of memory. A 4.3-inch e-Task color touch screen offers a precise, responsive, tablet-like user interface with multi-touch capabilities. Beyond included USB and gigabit ethernet, this device lets you connect wirelessly via AirPrint, Google Cloud Print, and Mopria on any network with existing Wi-Fi access.