ZyXEL USB-Adapter Wireless Draft-N 2.0. Connectivity technology: Wireless, Host interface: USB. Data transfer rate (max): 300 Mbit/s. Input voltage: 5V. Width: 8.1 cm, Depth: 2.8 cm, Height: 1.2 cm. Certification: - FCC/CE/C-Tick/NCC/IC - WiFi, WMM-PS, Microsoft XP/Vista WHQL