Rosewill RNX-A8 2.4 GHz Indoor 8dBi High Performance Detachable Omni-Directional Antenna Powerful Signal Reception Antenna in All Directions Works with Virtually Any 2.4GHz 802.11b/g/n Compliant Devices with a SMA Connector You can connect RNX-A8 with Wireless PCI card or wireless router to increase the wireless signal