In Addition To The Innovative Ribbon Cartridge On-Site Upgrades And Just About Every Modern Wired And Wireless Connectivity Option The Zd420 Also Comes With Link-Os. This Unique Software Platform Greatly Reduces Time Spent Integrating Managing And Troubleshooting All Of Your Printers Making Your Thermal Printers More Cost Effective Than Ever. The Zd420 Is Currently Only Available For Purchase In North America And The European Union Countries. The Zd420 Will Be Launched In Other Countries Throughout 2016.