When you compare the ASRock 990FX Extreme9 to previously tested AMD 990FX boards, you can see that the new ASRock board is one of the most comprehensive boards on the market. Whether you will actually use eight USB 3.0 and eight Serial ATA 600 on an AMD board is another question, but if you're in need of high-end Socket AM3+ board, this 990FX Extreme9 is a great option.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips