If you dont mind me asking....
1. Why do you need more than 2 USB ports (1 for external hd) the other for (something else) Are you trying to connect multiple external hard drives. But why would you do that when you will play 1 game at a time
But to answer your question I already tried a 4x USB hub once on my ps3 and it didnt even take it. So your answer is NO
2. It just doesnt read it for a reason. idk why BUT multiman can read an NTFS drive so if you want to transfer full games with files above 4gb (which I do) or pkg files over 4gb then you can use it. BUT you cant play games on it. (idk why)
but all you need as atleast an 80gb+ external HD with 1 port extra
Ps3 Phat 250gb 4.46 OFW (Might sell or downgrade)
Ps3 Phat 80gb Rebug 4.46 Lite (Currently playing Devil May Cry / Far Cry 3/ Assassins Creed 3/ WWE 2K14)