Epson Type B EpsonNet 10/100Base Tx Internal Print Server 5, Ethernet LAN, 5 - 35 °C, 20 - 80%, -30 - 70 °C, Printer/ AC Adapter, Client: Windows 3.1x, Windows 95, Windows 98, Windows NT 3.51 or later, OS/2, Mac 7.6x, 8.x, 9.x... Epson Type B EpsonNet 10/100Base Tx Internal Print Server 5. Network connection type: Ethernet LAN. Power supply type: Printer/ AC Adapter, Compatible operating systems: Client: Windows 3.1x, Windows 95, Windows 98, Windows NT 3.51 or later, OS/2, Mac 7.6x, 8.x, 9.x..., Interface: 10/100 Base Tx