The only front ports/connectors on this case are audio and USB 3.0. What you are looking at is most likely the USB 3.0 motherboard connector. Here is what the USB 3.0 motherboard connection should look like:
Unfortunately this motherboard does not have this connection so the ports will be useless with your current config.
You have a few options:
1) Get a new motherboard that has a USB 3.0 connection.
2) Get a new case that uses USB 2.0 front panel connectors.. you have 3 hookups on your motherboard.
3) Get an addon card that has the connector. This particular one will give you both the extra USB 3.0 in the back of you PC, plus you have the front-panel connector to get your front USB 3.0 active.
4) As suggested by a commenter below, you could also get an adapter that converts a USB 3.0 connector to a USB 2.0 connection. You will of course only get USB 2.0 speeds using this method.
Since the price is reasonable, plus you get a few extra USB 3.0 connections in the back of your tower I would go for #3.
If you choose #3 and choose the card I suggested you have a few options where you'd like to place it. Since it is a PCI-ex 1.0 card you can insert it into either a PCI-ex 1x slot or the PCI-ex 16x slot (16x is the "longer" slots and are usually reserved for video cards but will function @ 1x if the card is inserted since there will be no contact/use by the extra slot pins). If it were me I would go for a 1x slot as there may be less compatibility/BIOS config. See the image below for your available PCI-ex slots:
Good luck!