Computer Accessory Sets features: 300Mbps PCI Express Wireless LAN Network Adapter Card with 2 Antennas, IEEE 802.11b / 802.11g / 802.11n Standards Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. 1. Standards: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b 2. Provide 64/128-bit PCIE connector 3. 20MHz / 40MHz interoperable channels dramatically increase performance 4. Adopt Mimo technology for wireless rates of up to 300Mbps 5. Support 64/128bit WEP, Complies with 128bit WPA standard (TKIP/AES) 6. Support mic, IV expansion, shared key authentication, IEEE 802.1x 7. Simple configuration and monitoring 8. Support roaming technology, guaranteeing effecient wireless connections 9. Simple and easy to user manageable software for a relaxed easy configuration of wireless client 10. Compatible with 11g and 11b equipment, Intel Centrino compatibility tested 11. Support Windows 2000, Windows 2003, XP, VISTA(32/64),CE, WIN7, LINUX, MAC (10.3 /10.4/10.5) 12. With 2 external detachable antennas