WAVLINK WN690A5D For PC AC1900M USB 3.0 Network Card 2.4GHz 5GHz Dual Band Wireless Adapter 1.AC1900M USB WiFi Adapter: This compact USB WiFi adapter supports 2 4GHz and 5GHz WLAN networks. 1900 (1300+600) Mbps wireless speed. 20MHz&40MHz&80MHz bandwidth transmission. OFDM with BPSK, QPSK, 16QAM, 64QAM, 256QAM modulation 2.Smooth and delay-free connection: Wi-Fi speeds up to 600 Mbps on the 2.4 GHz frequency band and up to 1300 Mbps on the 5 GHz frequency band. Dual frequency connection allows for no delay high-definition video streaming and gaming 3.Dual frequency 2.4GHz and 5GHz frequency bands: Dual frequency provides flexible connections, allowing your device to access the latest routers, faster speeds, and extended range 4.4x3dBi omnidirectional antenna: greatly enhances the reception and transmission of WiFi signal strength. 300 meters outdoors and 100 meters indoors (depending on actual environmental changes). 5.Universal compatibility: This WiFi receiver supports Windows XPVista788.110, MAC OS. 6.Ultra fast USB 3.0 port, backwards compatible with USB 2.0 7.Compliant with IEEE 802.11ac, IEEE 802.11n, IEEE 802.11g, IEEE 802.11b standards Specification: 1.Working temperature: 0-40 degree centigrade 2.Storage temperature: -10-70 degree centigrade 3.Standard protocol: 802.11ac802.11abgn 4.Port: USB3.0 5.Frequency band: 2.4GHz and 5GHz