Features:

Desktop Label Printer, ZD621, Direct thermal
203 dpi, 6 ips, USB/USB Host/Ethernet/Serial/Bluetooth
Cutter, Icon User Interface, 4-inch Print width
Print methods Thermal Transfer or Direct Thermal
ZPL and EPL programming languages
5 status icon, 3 button user interface

Specification:

Print Color Capability: Monochrome
Standard Memory: 256 MB
USB Host: Yes
USB: Yes
Cutter: Yes
Resolution: 203 dpi