My bad. You're correct as I use a serial port bracket. Make sure that you get the correct serial port bracket for that motherboard.
Oh and will i need any software for the UPS?
I can't answer that question because you didn't specify what OS you're running. If Windows XP, Vista or 7, then you don't. You only need to configure it. If an OS like Linux, then I don't know. Drivers should also be available from the manufacturer.