The Aironet LM3500 Wireless LAN Adapter enables mobile professionals to access network resources while on the move. Designed with Aironet's leading-edge frequency hopping spread spectrum (FHSS) radio frequency technology, the Aironet LM3500 is a network interface card (NIC) that provides standard laptop computers or other devices equipped with PC card slots wireless connectivity to a network.  These cards are being sold without an antenna.  The outer edge of the adapter has 2 antenna connectors.  Please refer to the pictures of the edge.