TP Link for pc (Horwich BL6)

My wife had a pc which was away from the router and often the wifi dropped out. This little device is inserted into the back of the pc. You need to open the case to fit it. There's an instruction booklet and a CD disk but you can also set it up online. Technology moves on and we have a more powerful set up now so it isn't needed but it worked a treat so if you are interested please let me know.