HP Color LaserJet Enterprise CM4540 MFP series - Manual (Page 29)

Interface ports
1
2
4
5
6
7
3
1 Hi-speed USB 2.0 printing port
2 Foreign interface harness for connecting third-party devices
3 Local area network (LAN) Ethernet (RJ-45) network port
4 USB port for connecting external USB devices
5 Fax port (RJ-11)
6 EIO interface expansion slot
7 Slot for a cable-type security lock
Serial number and model number location
The model number and serial number are listed on an identification label located on the back of the
product. The serial number contains information about the country/region of origin, the product
version, production code, and the production number of the product.
Model name Model number
CM4540 MFP CC419A
CM4540f MFP CC420A
CM4540fskm MFP CC421A
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