TA Triumph-Adler CLP 4721 - Manual (Page 174)

A-1
Appendix
This chapter lists the provides details of the available interfaces
and describes the optional hardware that can be installed on
the printer and shows the printer's specifications.
Interface A-2
USB Interface A-2
Network Interface A-3
About the Options A-5
Expansion Memory Modules A-6
General Description of Options A-8
Specifications A-12
For availability of the options, consult your service technician.