3M SMA Male to female wireless router / card 3 m antenna extension cable magnet chassis 

 

DIY friends are no longer enough for the antenna wire can not be placed across the upstairs， or placed next to the window， but also worried about some line loss wife， asking many available in the market， and some cord is too short， only about 2M， and some also loss， now do not worry， there is such a low-loss long with magnetic base. Want to put what to put where!