ZD420, 4\" TT Printer, 300 dpi, with BTLE, USB, USB Host & Ethernet, Print technology: Thermal transfer, Maximum resolution: 300 x 300 DPI, Print speed: 102 mm/sec. Product colour: Grey If you need a fast 4-inch printer that is easy to use, easy to deploy and easy to manage, choose the leader of the class - the ZD420. With a choice of ribbon or new ribbon cartridge models and more status icons maximise uptime by making using the printer easier than ever to use. With virtually every modern wired and wireless connectivity option and support for many printer languages, deployment is always fast and easy just unplug your existing printer, plug in the ZD420 and you\'re back up and running. Add new connectivity and media handling options whenever you need them, right on site. Specifications Memory Standard Memory 256 MB Miscellaneous Energy Star Yes Power Description Power Source AC Supply Interfaces/Ports USB Yes Serial Port Yes Network & Communication Bluetooth Yes Ethernet Yes Near Field Communication (NFC) Yes Media Types & Handling Maximum Roll Diameter 127 mm Media Type Fanfold Receipt Roll Fed