Mr. fa55tbenz
Yes you can do it.
1- do u have jus 2 cameras right now?
Yes, continue...
No, no you can not install more, cose' dv 9240 is only for four cameras.
If you need adding 2 cameras, you will need coax cable for each one camera and dc adapter.
then... check your software setup configuration.
Enable the 2 channels to new cameras installed.
Have agood luck!
Check this:
Eyemax downloads
http://www.eyemaxdvr.com/scripts/quickdownload.asp
Section recommended:
Older Version of Software and Manual to download.