TP-LINK TL-WN751ND is designed to provide a complete end-to-end wireless performance from the server or server backbone to the switch infrastructure & down through to the desktop with the PCI connector. TL-WN751ND Wireless N PCI Adapter provides a wider compatibility, fitting with any standard 32-bit PCI slot. Compared with standard PCI network cards, it offers increased bandwidth, reliability & more functionality, allowing you to enjoy a fast & advanced connection, such as downloading, making internet call & video streaming. Complying with the IEEE 802.11n standard, TL-WN751ND can easily establish a wireless network & get up to 9X the speed & 4X the range of conventional 11g products. Compared with legacy 54M products, TL-WN751ND delivers performance enhancements, allowing you to have a more joyful surfing experience, including sharing files, watching streaming media. As for the security of WI-FI connection, WEP encryption has been no longer the strongest & safest guards for outside intrusions. TL-WN751ND provides WPA/WPA2 encryptions that are created by the WI-FI Alliance industry group, preventing the wireless network from outside threats. Compatible with WI-FI Protected Setup (WPS), TL-WN751ND features Quick Security Setup (QSS) function, which is ideal for creating a WPA encrypted connection to prevent outside intrusion, & meanwhile maximize the management resources. Not only is this faster than normal security setups but more convenient in that you dont need to remember a password! TL-WN751ND offers external antenna that can be rotated & adjusted in different directions to fit various operation environments, & can bring better performance than the internal antenna. For even more demanding applications, the antenna can be replaced with diverse antennas to show even greater flexibility & wider wireless coverage.