ZEBRA ZD421 Thermal Transfer Desktop Printer 300 dpi Print Width 4-inch USB Ethernet ZD4A043-301E00EZBrand: ZEBRA Color: Gray Features: Easy to use: Connects via USB, Ethernet, and is compatible with media rolls that have a 1 in core, a max diameter of 5 in, and a max width of 4. 25 in Direct thermal technology: Requires the use of direct thermal media, no thermal ribbon required to print Powerful: Fast print speeds, superior performance, and top print quality for address, shipping, mailing, file folder, barcode, and binder labels as well as name