please read the product Q&A or google it before posting here:
Question:
Does anyone know if this works with ubuntu 14.04?
Answer:
No! The "real" TP-WN725N will, but these (thought advertised as a WN725N) are "NOT" the WN725N, but are made by Archer, and they don't work with LINUX, Ubuntu or LINUX Mint. If you get a real TP-WN725N and plug it in, it will work right out of the box!!