Dual-Band PCI Exprss Adapter N600 Wireless. Edimax 11a/b/g/n N600 Wireless Dual-Band PCI Express Adapter Supports dual-band (2.4GHz & 5GHz) wireless connectivity Features a hardware WPS button and two 3dBi detachable antenna Includes multi-language EZmax setup wizard Supports 64/128-bit WEP WPA WPA2 WPS and IEEE802.1x encryption for wireless security Includes a low profile bracket for small case computers