Hi I have a wireless router which a laptop and X box can pick up signal off but an older PC cant and is still using wired connection, is the device I need for the PC to pick up a wireless signal called a wireless USB Lan Adaptor, I have seen some on Amazon/Ebay but want to be sure I buy the right thing, not very tech minded had to check the box to make sure the thing I had was called a wireless router (which it is ) any recommendation for good make etc tks