TP-LINK&s 450 Mbps Wireless N Dual Band PCI Express Adapter TL-WDN4800 means that you can connect a desktop computer to a wireless network & access a high-speed wireless network connection Complying with IEEE 80211abgn the device can use the 24 G Hz or 5 G Hz channels & provide wireless speeds of up to 450 Mbps which is ideal for users seeking a highly robust bandwidth intensive wireless networking experience particularly with HD video streaming & online gaming Dual Band is the latest wireless technology allowing the Adaptor to connect with a 24 G Hz or 5 G Hz network This means that you can check e-mail & browse the Internet using the 24 G Hz band or stream HD movies & other media on the 5 G Hz band The advantage of working on the 5 G Hz band is that unlike the crowded 24 G Hz band shared with microwaves cordless phones & other wireless networks it has much less interference & can provide a more stable wireless signal which is ideal for online gaming & HD video streaming Both the adaptor&s 24 G Hz & 5 G Hz bands support the maximum speed of up to 450 Mbps which generates a maximum theoretical wireless throughput bringing you a limitless wireless experience WPAWPA2 encryption standards ensure your wireless connection is safe from intruders Product Features Achieves a maximum theoretical throughput of up to 450 Mbps Supports dual-band 24 G Hz or 5 G Hz Seamlessly compatible with 80211abgn products Experience smoother video streaming & online gaming by choosing the clearer 5 G Hz band for wireless connections Supports 64128 WEP WPA WPA2WPA-PSKWPA2-PSK (TKIPAES) supports IEEE 8021X Supports ad-hoc & infrastructure mode Bundled utility provides quick & hassle-free installation Wireless Modes Ad-Hoc Infrastructure mode