... the 450M high-speed transfer, especially using the 3T3R TL-WDN4800 removable dual frequency antenna, a perfect combination of ... the common 2T2R can provide better wireless transmission and stability!TL-WDN4800 with CCA (Clear Channel Assessment) air channel ... compatible with WEP encryption, easy and secure wireless connection. TL-WDN4800 450Mbps Wireless N Dual Band PCI Express Adapter, Atheros ...