HP LaserJet M3027 Multifunction Printer series - Manual (Page 17)

Interface ports
1
2
3
4
5
6
1 Fax port (HP LaserJet M3027x and HP LaserJet M3035xs only)
2 Network connection
3 Foreign interface harness (FIH) port
4 Interface port to support third party solutions and accessories.
5 Type B Hi-Speed USB 2.0 connection for printing
6 EIO slot
ENWW Walkaround 5