Because I felt many lines running in my room are very incovenient, I bought wifi router, AternWM3500R by NEC. This is very smart. It can connect 7 equipments simultaneously, laptop computer, smartphone, desktop computer, iPad etc.
Connection is very fast and smooth. Color is 3 types,white, black and red. As you can see, I bought white one. Connection fee is a fixed amount and reasonable. It is very convenient and will relieve your stress. I recommend it.