HP LaserJet Enterprise 500 MFP M525 - Manual (Page 18)

Interface ports
1
5
4
3
2
1 Local area network (LAN) Ethernet (RJ-45) network port
2 USB port for connecting external USB devices
3 Hi-Speed USB 2.0 printing port
4 Foreign interface harness (for connecting external devices)
5 Fax port (M525f model only)
4 Chapter 1 Product introduction ENWW