I bought the Beatles Rock Band Special Value Edition and yes, on the back of my Wii, there are two USB ports. Into one, I must plug the black, square hub. That hub has NO USB ports ~ I have inspected the top and bottom, as well as all 4 sides.. nothing!
Ok.. so now I have the wireless hub hooked up and can play the guitar.
Next, to my dismay, I found that the microphone is NOT wireless and there is nothing in the instructions, whatsoever! After a few calls, I found a friend who has a Rock Band set and he said there are 2 hubs; one with 2 ports and one with no ports and that I need to plug the hub with ports into the console and the one without ports into one of the ports on the first hub. I just listened..confused.
Since I wasn't hooking up the drums and now know that the hub goes into the console, I pulled out the console to find that there are two USB ports! I plugged the mic into one USB port and the hub into the other. Cool! I sang for hours!
I hadn't bothered with the drums cuz I live in an apartment and don't want the neighbors complaining about the clacking I remembered when watching kids banging away in
Best Buy and Target, but I have kids over tonight and decided to break it out. Again, to my dismay, I now find that the drums are wired, as well! Ok, to where do I stick THAT? Oh yea, into the port on the second hub. WHAT SECOND HUB?? I searched the boxes and there's nothing on the box that says there are two hubs..just one.
Then I thought, thinking outside the box.. maybe there's a port on the drum set that I can plug the mic into, but nope. So I unplugged the mic from the Wii and plugged in the drums. Wired drums into one port; hub into the other port. I'm twirling the cord of the mic! I'm gonna strangle something or someone!

Kidding, of course..
So the kids are drumming and clacking (ugh), and I want to SING cuz I know all the Beatles songs ~ which is why I bought the dang thing in the first place!
Why did I get the whole set, you ask? Cuz it was cheaper than buying the guitar/game and a separate mic! HELP!!!
Signed, Grandma Can't Sing! but she sure can vent!