Units may have sticker residue!! The Zebra LP2844 Direct Thermal Label Printer is a monochrome printer with thermal technology. It has a maximum resolution of 203 x 203 DPI and a black print speed of 20 ppm. This portable and networkable printer has 256 MB of memory and various connectivity options including cable, USB, Ethernet, and serial/parallel ports. Please note that a power adapter is not included.