Zebra ZD230 Thermal Transfer Printer (ZD23042-30EC00EZ) - Resolution: 203 dpi/8 dots per mm, Print Speed: 6 in./152 mm per second or 4 in./102 mm per second, Memory: 128 MB Flash; 128 MB SDRAM, Media Types: Roll-fed or fan-fold, die cut or continuous with or without black mark, tag stock, continuous receipt paper, and wristbands, Communications: Factory-installed USB and Ethernet, Operating System: Link-OS Basic printer operating system