Jim I am sorry but I have to disagree with you. The Behringer interface has direct monitoring. He should not be buying a microphone with a headphone output on it. That’s what the direct monitor feature of the sound card is for
rockstar_not,
We both agree the USB microphone can not plug into the USB audio interface.
I think your thoughts and my thoughts diverged because cubalibre's question and follow up response implied he is looking to purchase a condenser microphone and the follow up indicated he is worried about latency. Two different subjects. Therefore I gave him two options.
Option 1 was stick with a USB condenser microphone but get one that has direct monitoring capability. Then the audio interface is not needed.
Option 2 was get a traditional condenser microphone (and cable) and connect to the audio interface instead of a computer USB port. Then the audio interface provides a direct monitoring headphone jack.
If cubalibre encounters a situation where two performers are recording at the same time (for instance a singer and a musician playing an instrument) it might be handy to have two direct monitoring headphone jacks. If he is recording just a vocalist with a USB microphone then having a microphone with a direct monitoring headphone jack eliminates the need for the audio interface.
I think ultimately you and I are on the same page.