BCM4323 WiFi Card 300Mbps 2.4G 5G Dual Band Built in 9 Pin USB Wireless Network Card Adapter with Dual Antenna for PC1HIGH SPEED WIRELESS TRANSMISSION: The BCM4323 network card adapter supports a wireless rate of 300Mbps, ensuring a fast and stable network connection experience. 2DUAL BANDS: The WiFi card is able to support 2.4G and 5G dual bands at the same time, providing more choices of wireless bands to avoid network congestion and interference. 3DUAL ANTENNA DESIGN: The PC WiFi card is equipped with dual antennas to enhance signal strength and stability, providing wider coverage and faster transmission speeds. 4BUILT IN USB PORT: Easy to install and use, plug the adapter into the PC's built in USB (9 pin) port to complete the installation, no need for additional slots or cables. 5UNIVERSAL ADAPTABILITY: This wireless network card is suitable for most desktop computer devices with wide compatibility to meet different users' needs.