I finially decied to get a mini pcie card for my D510MO mobo instead of usb one because I want to free some space for a 12V battery.
However, I found that the most product on the market has more than one antenna connertors on board but I only have one antenna for this card. When I was working at a Wimax company. I remember some guy told me that never let the antenna IDLE or the RF amplifier may be damaged. I don't know if the rule works on this board but I hope someone can help me with this issiue. Thanks.