They are always sold out...

"They"? The FAQ lists three separate specific places, are you saying all three are always sold out?

And then, after listing those three places, it also lists extremely detailed specifications so that you can look around electronics stores to find the one you need on your own without having to make others do the leg work for you.

Dunno how much more hand-holding we can give?

Edit: I just checked, it lists four, not three.