The metal print engine feels built for hard use. Zebra 511 is a thermal transfer label printer with 203 dpi resolution, a color display, and ZPL support. It connects through USB, USB-Host, RS232, Ethernet, and Bluetooth 4.1. It handles media widths from 16 mm to 114 mm and prints up to 104 mm wide. Print speeds reach up to 457 mm/s.