The ones next to the PS/2 ports are the non-native ASMedia ports. The ones next to the the LAN port are the Intel ones, which need no driver to work properly (install them anyway).
The I/O panel for the ASRock Z77E-ITX has the typical connections that we find on most boards. On the left we can find a single PS/2 port, a pair of ASMedia SuperSpeed USB 3.0 ports, DVI-I port, HDMI, DisplayPort, clear CMOS (BIOS Reset), a pair of USB 2.0 ports, eSATA (SATA 2 3Gbps), Gigabit LAN (Broadcom BCM57781), five audio jacks, optical SPDIF out. Just above the DVI-I port is the antenna ports for the Wireless N. The only thing that I would have changed about the layout of the I/O panel is the location of the ASMedia SuperSpeed USB 3.0 ports. If you don't have the driver installed, these wont work in Windows. I was surprised to see that they work in the UEFI BIOS, but not in Windows. I would like to see the USB 2.0 ports here, it seems odd not to run my keyboard and mouse in these ports. Perhaps this is just personal preference, but that's what I would like to see.