Zebra ZT421 Industrial Direct Thermal/Thermal Transfer Printer - Label Print - Ethernet - USB - Serial - Bluetooth - 1143 mm Print Length - 167.64 mm (6.60\") Print Width - 254 mm/s Mono - 300 dpi - 990.60 mm Label Length Fast and reliable, the ZT421 has a 4.3-inch full-colour touch display to see printer status at a glance and quickly make settings changes. It has a print width of 6 inches and can print up to 12 inches per second. Specifications Memory Standard Memory 256 MB Power Description Power Source AC Supply Interfaces/Ports USB Yes Serial Port Yes Network & Communication Bluetooth Yes Ethernet Yes Miscellaneous Platform Supported PC Environmentally Friendly Yes Environmental Certification cTUVus Energy Star Yes General Information Product Type Direct Thermal/Thermal Transfer Printer Manufacturer Part Number ZT42163-T0E0000Z Manufacturer Website Address http://www.zebra.com/gb/en Manufacturer