Zebra ZT421 Thermal Transfer Printer (ZT42162-T0E0000Z) - Resolution: 203 Dpi (8pts / mm), Type of printing: thermal / thermal transfer, Printing Speed: 305 mm / s, Memory: 256 MB SDRAM. Internal 512 MB linear flash memory, Media types: Continuous, die-cut, notched, black mark, Interface: USB, Bluetooth, Ethernet, Software: Zebra Designer