 Being a proprietary pre-802.11 protocol, it is completely incompatible with the 802.11 standard.Soon after the publication of the IEEE 802.11 standard on November 18, 1997, WaveLAN IEEE was placed on the market.The pre-802.11 standard WaveLAN cards were based on the Intel 82586 Ethernet PHY controller, which was a commonly used controller in its time and was found in many ISA and MCA Ethernet cards, such as the Intel EtherExpress 16 and the 3COM 3C523.