TP-Link Archer T4U

AC1200 Wireless Dual Band USB Adapter
Archer T4U
Ultra-fast 1200 (867+300)Mbps wireless speed with 802.11ac
Dual Band connections for lag-free HD video streaming and gaming
SuperSpeed USB 3.0 port—Up to 10x faster than USB 2.0
Easy wireless security encryption at a push of the WPS button
Equipped with a USB Extension Cable for flexible deployment
802.11ac - The Next Generation of WiFi
TP-LINK’s Archer T4U comes with the next generation Wi-Fistandard – 802.11ac, 3 times faster than wireless N speeds.With 867Mbps wireless speeds over the crystal clear 5GHz band or300Mbps over the 2.4GHz band, the Archer T4U is the superiorchoice for seamless HD streaming, online gaming and otherbandwidth-intensive tasks. 
AC1200 Wireless Speed
The 5GHz 867Mbps is perfect for HD video streaming andlag-free online gaming, while using 2.4GHz 300Mbps Wi-Fi fornormal use such as web surfing 
USB 3.0 - Up to 10X faster than USB 2.0
Experience blazing speed data transfers of up to 4.8Gbps withUSB 3.0 - the latest USB connectivity standard. USB 3.0 transfersdata up to 10X faster than USB 2.0 and is also backwardcompatible with USB 2.0. This high-speed transfer rate combinewith 802.11ac ideal for HD streaming, online gaming and largefile downloads.
The Best of Both Bands
TP-LINK’s Archer T4U is an AC1200 Wireless Dual Band USBAdapter giving users the ability to access crystal clear 5GHzconnections or legacy 2.4GHz connections to upgrade theirnotebook or PC’s wireless capabilities to operate with new5GHz band wireless networks, while ensuring that they can stillaccess legacy 2.4GHz band wireless networks.  
Bundled USB Extension Cable
Archer T4U equipped with the 1m USB 3.0 extension cable, whichextend the USB connection length, making it more convenient toplug the USB device in & out of the USB socket. Its elegantand stylish design is suitable for home deployment and will evenimprove the look of your home and office.