D-Link RangeBooster DWA-542 300Mbps 802.11n Wireless LAN PCI Adapter D-Link DWA-542 RangeBooster N Wireless Desktop Adapter General Features: 32-bit PCI interface Standards: IEEE 802.11n and IEEE 802.11g Wireless frequency range: 2.4 to 2.4835 GHz Security: Wi-Fi Protected Access (WPA, WPA2) Data transfer rate: up to 300 Mbps LEDs: Link, Activity Two (2) antennas for optimal range 802.11n delivers up to 12x faster and 4x farther reception than 802.11g