Columns: Model number | Printer ports | Network ports | Network protocols | Firmware | Notes
EX Plus | One Parallel | 10Base-2 and 10Base-T | TCP/IP, IPX/SPX, and DLC/LLC | Flash EEPROM | BOOTP & DHCP Client | EX Plus3 | Three Parallel | 10Base-2 and 10Base-T | TCP/IP, IPX/SPX, AppleTalk, and DLC/LLC | Flash EEPROM | DHCP Client (not BOOTP) | 170x | One Parallel ( IEEE 1284.4) | One RJ45 10Base-T Ethernet | TCP/IP, IPX/SPX, and DLC/LLC | Non-upgradeable | Discontinued | 175x | One USB 1.0 | One RJ45 10/100Base-TX Ethernet | TCP/IP, AppleTalk, LPD (Windows and Mac OS only) | Non-upgradeable | Discontinued in favor of the en1700 | 310x | One USB 1.0 | One RJ45 10/100Base-TX Ethernet | TCP/IP, IPX/SPX, AppleTalk, and DLC/LLC | 2 MB | Discontinued in favor of the en3700