FACTORY SEALED!!! The Alfa AWUS036H Long Range USB 2.0 Wi-Fi Adapter is a versatile and high-quality device that provides a maximum downstream data rate of 54 Mbps. With its long-range capabilities, this adapter is compatible with various operating systems including Windows, Mac, and Linux. It features multiple connectivity options such as RP-SMA and USB 2.0, making it easy to connect to different devices. Additionally, the adapter supports WEP and WPA/WPA2 security protocols, ensuring secure wireless connections. Perfect for home networking and connectivity needs, the Alfa AWUS036H is a reliable choice for expanding your device's Wi-Fi capabilities.