Built in all-metal frames and equipped with double-folded doors, the ZT400 series printers offer exceptional print speed, registration and RFID connectivity options, and a variety of advanced features. The ZT400 printer also offers options for USB, serial, Ethernet and Bluetooth® connectivity, along with expanded RFID capabilities. Zebra's innovative operating system, the Link-OS® environment, makes it easy to integrate, manage, and maintain printers from anywhere in the world. The fast, reliable ZT420 supports a 6-inch print width and can print up to 12 ips.