I'm new here and recently I was looking for a port replicator(docking station) that would have a parallel, serial, usb3.0(atleast one),usb2.0(not necessary), and 5.1 or. 2.1 audio. I was looking for one in Newegg and elsewhere for hours but I only found compactible to one or more computers(my laptop doesn't have a docking port). I need parallel and serial for programing chips and audio for my sub and I don't want dongles laying arround.
Finding one that has USB 3.0 AND Parallel/Serial (these are at opposite ends of the laptop technology spectrum) is going to be a tough one to find especially if your laptop doesn't have the option to use some type of docking connector... If you had a Dell with a docking connector, no problem, they make it.
All of these things exist separately, but I wasn't able to find them all in a single unit. Maybe 2 or 3 different adapters could solve your needs.