100% brand new and high quality.Dual Band connections, Maximum speed up to 600Mbps: 5GHz 433Mbps, 2.4GHz 150Mbps.Supports 802.11 ac standard, backward compatible with 802.11 a/b/n/g products.High speed USB 2.0 port.Easy Setup:Install the driver from the included CD. After the driver is installed, you can use the built-in wireless utility in your operating system to connect to a wireless network.Dual Band USB Wireless LAN Adapter with High Gain Long-Range 2dBi Antenna brings you a tiny way to get speedy next generation Wi-Fi connections, by connecting it to the USB 2.0 interface of your PC, laptop or Mac, you can establish 433Mbps connection at 5GHz radio or 150Mbps connection at 2.4GHz radio with your WiFi router. You can shift between 2.4GHz and 5GHz WiFi bands to avoid interference and have optimal WiFi Internet connection for your PC,laptop or Mac.CompatibilityFully compatible with the mainstream operation systems: Windows 2000/XP/Vista/7/8/8.1/10, Mac OS 10.4-10.11, Linux.Compliant With IEEE802.11a/b/g/n/ac standard.802.11a: 6, 9, 12, 184, 36, 48, 54Mbps; 802.11b: 1, 2, 5.5, 11Mbps; 802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps; 802.11n: (20Mhz) MCS0-7, up to 72Mbps at most.Interface type: USBProduct chip: Realtek 8811CUTransmission rate: 600MbpsNetwork speed support: 2.4G--150Mpbs/5G--433MpbsNetwork mode: dual-band 2.4G+5.8GUSB head size: 4.5x2x1.2cmAntenna size: 10.8cmColour:blackMaterial: ABSPackage Contents:1 x Wireless network card1 x Antenna1 x Network cable1 x CDNote:This product support 5GHz Wi-Fi Band,some can not use cause the connected device that not support send 5GHz Wi-Fi Band, please make sure your device support send 5GHz Wi-Fi Band before purchase,thanks.Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.