PowerEdge R230 cable management

Hi everyone !

I'm not sure this is the right place for such post, but I'm having little trouble with configuration for new server.

I don't need much power, so PowerEdge R230 suits fine, but I can't find any information about cable management arm for this model. And R330 also. All configurations comes with "static rails", and there's no option with management arm. And as I can see, it's impossible to use arm compatible with R320 - no mounting point available.

So - no management arm for small servers anymore ? Or am I missing something ?

Thanks in advance !