Re read your mobo's doc.
There's NO usb1.2 standard . Only 1.0 (outdated), 1.1 (current low speed standard, roughly 1.5mbyte/s), and USB2.0 aka USB-HighSpeed (60 MByte/s)
Your motherboard ALREADY HAS USB2.0 Highspeed and is backward compatible with 1.1/1.0 peripherals too, so that hub will work.
Makes sure you use the right drivers, that's all.