Check the listing for details. TP-Link Archer T4U AC Dual Band USB Wireless Adapter. Color: Black, Condition: Open box. Listed at 19.99 USD. Condition: Manufacture RefurbishMPN: T4UWarranty: 90-Days This listing is for TP-Link Archer T4U AC Dual Band USB Wireless AdapterThe TP-LINK Archer T4U adapter receives Wi-Fi signals on two separate bands for all your online needs. Choose the 2.4GHz band for up to 400Mbps of surfing, e-mailing, and social media, or switch to 5GHz for up to 867Mbps of gaming, HD streaming, and large file downloads. Even when your desktop or laptop is far away, beamforming concentrates the Wi-Fi signal towards your router to create stronger overall connections. With two high-gain antennas, Archer T4U greatly extends Wi-Fi range and coverage compared to a typical wireless adapter. Thanks to MU-MIMO technology, this USB adapter can provide two simultaneous data streams, improving the throughput and efficiency of the entire network when working with a compatible MU-MIMO router. Experience blazing-fast data transfers of up to 4.8Gbps with USB 3.0, the latest USB connectivity standard. Combined with 802.11ac Wi-Fi, USB 3.0 makes Archer T4U great for HD streaming, online gaming, and large file downloads.Wi-Fi USB adapter connects your laptop or desktop computer to a wireless networkDelivers up to 867Mbps over the 5GHz band and 400Mbps over the 2.4GHz bandSuper speed USB 3.0 port provides up to 10 times faster transfer speeds than USB 2.0Dimensions: 0.55"H x 1.24"W x 3.64"DSimple software installation with the intuitive utility on the provided CDComes with the fast 802.11ac Wi-Fi technology; the transfer rate is three times faster than Wireless N; selectable dual 5GHz and 2.4GHz bands make it perfect for HD video streaming, lag-free online gaming, and web surfingMeets or exceeds FCC, CE, and RoHS standardsWireless security: WEP, WPA/WPA2, WPA-PSK/WPA2-PSKBeamforming delivers targeted signal for highly efficient wireless connectionsTwo high-gain external antennas ensure superior range, signal quality, and transmission performanceMU-MIMO technology provides exceptional speed and performance even when multiple devices are connected to Wi-FiSystem requirements: Windows 7/8/8.1/10, Mac OS X 10.9-10.13Package contents: wireless USB adapter, quick installation guide, and resource CDListing and tem