1. This USB network adapter supports the latest 802.11ac standard and helps you upgrade your wireless connection. 2. It offers speeds of up to 866 Mbps on the 5 GHz band and up to 300 Mbps on the 2.4 GHz band, making it perfect for high - definition streaming media and online gaming. It is also backward - compatible with older standards such as 802.11a/b/g/n, so you can connect to any type of wireless network. 3. The device can be easily connected via a USB port and is compatible with multiple operating systems including Windows and Mac OSX. For users who need a fast and reliable Internet connection, especially in environments where the wireless network adapter is missing or damaged, this adapter is the ideal choice. 4. In addition, it provides reliable security, supporting WEP, WPA, and WPA2 to ensure the security of your data. The 5 GHz band is particularly helpful in avoiding interference from other devices and provides a clearer and faster connection, making it ideal for streaming media and gaming. 5. Backward compatibility with old network standards, enhanced security through WPA2 support. Materials: plastic, metal. Dimensions: 8 x 4 x 1.5 cm. Frequency: 2.4 GHz / 5 GHz. Range: 15 meters. Interfaces: USB 3.0, 2.0, 1.1. Security: WEP / WPA / WPA2 / TKIP / AES. Standards: IEEE802.11ac / a / b / g / n. Requested bandwidth: up to 866 Mbps (5G: 866M / 2.4G: 300M). Supported systems: WINDOWS XP / 7/8 / 8.1 / 10 / 11 / MAC OSX / LINUX. It can be easily connected via a USB port, with a range of up to 15 meters and extremely fast speeds.