Specification: Optional: WIFI5, WIFI4 Chipset: WIFI5: Realtek 8811CU chip WIFI4: Realtek 8192FM chip Interface: USB 2.0 Wireless speed: WIFI5: 11n: Up to 200Mbps 11ac: Up to 4337Mbps WIFI4: 300Mbps Frequency range: WIFI5: 2.4GHz and 5.8GHz WIFI4: 2.4GHz Wireless transmission power: 20dBm (maximum EIRP) Modulation technology: OFDM/CCK/16-QAM/64-QAM Working mode: Ad Hoc/Infrastructure Wireless network security: 64/128 bits WEP, WPA/WPA2, WPA PSK/WPA2 PSK (TKIP/AES) Temperature range: Operation: -20 ℃~70 ℃, Storage: -40 ℃~90 ℃ Humidity: Operation: 5%~95% (non condensing), Storage: Maximum 90% (non condensing) Supported operating systems: Windows XP/Vista/Linux/Win 7/Win 8/Win8.1/Win10/Mac OS Product size: about 26 * 15 * 8mm/1.02 * 0.59 * 0.31 inch Gross weight: 5g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x USB WiFi Adapter 1. High-Speed Transfer Rates: With transfer rates of up to 650Mbps/300Mbps, this wireless network adapter provides fast and reliable connectivity for your devices. It supports dual-band frequencies at 2.4GHz (200Mbps) and 5.8GHz (433Mbps) for maximum speed and bandwidth. 2. Multiple Operating Modes: This USB adapter offers two operating modes - infrastructure and Ad-Hoc - providing flexibility and versatility in setting up your wireless network. 3. Fast and Secure Setup: The WiFi adapter features quick and easy setup with WPS for worry-free wireless security, ensuring that your device is protected from unauthorized access and attempts. 4. Robust Security Features: This adapter supports 64/128-bit WEP and 128-bit WPA standards (TKIP/AES), as well as MIC, IV extension, shared key authentication, and IEEE 802.1X protocols for added security and protection against cyber attacks.