Hercules WiFi USB 802.11G Stick. Connectivity technology: Wireless, Host interface: USB. Data transfer rate (max): 54 Mbit/s, Bandwidth: 2.4 GHz. Minimum RAM: 64 MB, Minimum hard disk space: 50 MB, Minimum processor: Intel Pentium, AMD Athlon/AMD-K6. Security algorithms supported: WPA/WPA2 (WEP). Compatible operating systems: Windows 98SE / Windows Me / Windows2000 / Windows XP