Features: This product only supports for wireless Networking cards adapter. This product is adapter card, it is NOT a wireless Networking card, not come with a wireless Networking card High quality,prevent short circuits from burning the mainboard or the networking card from burning, safe to use The optional antennas double frequency antennas, not regular antennas Double frequency 2.4 & 5GHz, strong and stable, supports ggabit highle performanced with antannas set; . Specifications: Item：WIFI Card Adapter Antennas: 2PCS/3PCS/4PCS 2-antennae model: supports the use of 2 antennae for wireless Networking card, and supports Bluetooth-compatible dashboards with two option: full height and half height. You need to leave a message or tell customer service about the half height, and defaulted to send the full height version 3-antennae model: supports the use of 3 antennae for wireless Networking card, and supports Bluetooth-compatible dashboards with two option: full height and half height. You need to leave a message or talk to customer service about half height, and defaulted to send the full height version 4-antennae model: supports 4 antennae for wireless Networking card usage, supports Bluetooth-compatible, only supports full high-end boards, not support half height Compatible Networking card:: 2 antennae models: BCM943224PCIEBT2, BCM94360CS2 3 antennae models: BCM94331CSAX, BCM94360CSAX, BCM943602CS 4 antennae models: BCM94331CD, BCM94360CD, BCM943602CDP Package Includes: 1pc Adapter Board 1pc Baffles 1Set Antennae 1pc Bluetooth-compatible Cable 1pc Screw 1pc Shielding Cover note: Due to the problems of lighting effects, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.