This interface card allows you to utilize your printer via your Ethernet port (RJ-45). Not Included Power Supply (required for use) Compatibility Microline 520 Microline 521 Microline 590 Microline 591 320 Turbo revision H0 or lower 321 Turbo revision H0 or lower 390 Turbo ...This interface card allows you to utilize your printer via your Ethernet port (RJ-45). Not Included Power Supply (required for use) Compatibility Microline 520 Microline 521 Microline 590 Microline 591 320 Turbo revision H0 or lower 321 Turbo revision H0 or lower 390 Turbo revision G0 or lower 391 Turbo revision G0 or lower 420 revision D0 or lower 421 revision D0 or lower 490 revision D0 or lower 491 revision D0 or lower Note: You can locate the revision version of your printer by looking at the last two characters of the serial number located on the back of the printer.
If your printer is higher than the revisions listed above you need the Okidata OkiLAN 6130 Print Server 72008701