You'll probably find what you're looking for if you search on 'USB OTG' (OTG means On The Go). However, our beloved Nexus 4's are in this very exclusive club and to get in there you mustn't have this USB OTG. In short, our devices are not supported so you'll be left with a cable that doesn't do anything. There are some ways to get around this but you'll have to go deep into your phone, so deep you might even see Adele rolling.