Zebra GX420t Desktop Direct Thermal/Thermal Transfer Printer - Monochrome - Label Print - Ethernet - USB - Serial - 103.89 mm (4.09\") Print Width - 152.40 mm/s Mono - 203 dpi - 107.95 mm Label Width - 990.60 mm Label Length The best-in-class enhanced GX420t thermal transfer printer offers the widest range of features, and fast 6 inches per second print speed to meet all your low- to medium-volume printing requirements. The GX420t has a sleek and compact design, boasts the easiest ribbon loading system on the market, and supports a variety of applications and industries. Specifications Warranty Limited Warranty 1 Year Interfaces/Ports USB Yes Serial Port Yes Network & Communication Ethernet Yes Ethernet Technology Fast Ethernet Fonts & Emulation Language Emulation ZPL XML EPL Media Types & Handling Media Thickness 190.5 µm Maximum Roll Diameter 127 mm Media Type Black Mark Notched Perforated Label Die-cut Label Continuous Label Tag Stock Gap