My router is on the other side of the hallway from me and theres nothing blocking the path except for two doors and I was wondering if i should use PCIe or USB? and if so can you give me examples of the said choice which are highly recommended. Also why do company's like netgear and asus say they can get speeds up to 450mbs but the companys that supply routers only allow like 50? By the ay my price range is sub €50