32bit Cardbus 11n with Ralink RT2860 ( MAC/BBP ) and RT2820(RF)

Up to 300Mbps data rate, 6x better performance
SparkLAN
WPCR-501 Notebook Adapter is IEEE 802.11n draft 2.0 compliant. It can deliver 6x
better performance than normal 802.11g while fully backward compatible with
conventional 802.11g gears. The Notebook Adapter integrated MIMO technology,
which can enhance coverage range and throughput and save the cost to purchase
additional devices to deploy household WLAN environment. The Wireless-N Notebook
Adapter can achieve incredible transmission rate of up to 300Mbps, which allow
you to stream bandwidth-sensitive applications, such as high-definition video,
VoIP phone calls, movies, music, pictures, and online games.

Ensure your security and privacy
As the reach of your
wireless network extends further, network security is a key factor. 
SparkLAN Cardbus combines 64/128 bit WEP Encryption, WPA, WPA2, and QoS for your
laptop from hacker and intruders.

Product Hightlights
IEEE802.11n draft
compliant
Delivers up to 300 Mbps data rate
6x better performance with
MIMO technology
Ideal for bandwidth-sensitive application
Designed to
stream movies, music, photos, HD video, VoIP phone calls, and large
file
Backward compliant with 802.11b/g
Advanced security: 64/128bit WEP,
WPA, WPA2
RF Chain: 2T3R for HT20,HT40, 1T3R for 802.11b/g mode

Datasheet: href="http://www.sparklan.com/data/prod_data/153/prod_data.pdf">http://www.sparklan.com/data/prod_data/153/prod_data.pdf