Take your online activity to the Alfa max! Large homes and workplaces can now enjoy exceptional wireless performance with the AWUS1900 Wi-Fi Adapter by Alfa. This formidable device isn’t a router or repeater, but an easy adapter that connects to your computer to maximize its speed and connectivity while eliminating dead spots and lag time. Whether you’re streaming HD video or completing a local file transfer, our 4 extendable dual-band antennas deliver long-range power fit for any task. The unit adapts via an included USB 3.0 cable and optimizes your 802.11ac Wi-Fi for a combined rate up to 1900 Mbps. This means you’ll experience maximum download and transfer speeds—even when multiple people are accessing the network. Both beamforming capable and backwards compatible, our device also works with most Windows operating systems and MacOSX 10.4 onward. How to Enjoy Plug adapter into computer via provided USB cable Follow the DVD-Rom or online driver for easy installation Notice your computer’s amazing network performance Start downloading, streaming and transferring without worry Enjoy your newfound speed at home and in the office! .Alfa AWUS1900 is a new quad antenna 802.11ac Wi-Fi USB receiver boasting router connection speeds of up to 1900 Mbps (1300 Mbps for 5 Ghz + 600 Mbps for 2.4 Gz). It is compatible with Microsoft Windows 7, 8/8.1, and Windows 10. This connects to your computers USB port with enclosed USB 3.0 cable and boosts the Wi-Fi performance of that specific PC. This is not a router or repeater. Its four transmit/four receive (4T4R) dual band antenna technology allows utilization of both 2.4 and 5 Ghz radio bands on 802.11ac routers for a combined max connect rate of 1900 mbps. The antennas can be detached and extended or upgraded (extension requires optional coaxial cable extension not included in retail box).LIGHTING FAST PERFORMANCE – Long Range Adapter Connects to Computer to Boost Wireless Connectivity & Enhance 802.11ac Transfer Speeds Up to 1900 Mbps HIGH-GAIN QUAD ANTENNA – Includes 4 Detachable Dual-Band Antennas With 2.4GHz/ 5GHz Capability; Great for Video Streaming, File Transfers & Downloads MAXIMUM NETWORK SPEEDS – Great for Large Homes & Offices w/ Numerous Users; Improve Device’s Signal While Gaming, Messaging, Browsing & Beyond UNIVERSAL COMPATIBILITY – Beamforming Enabled & Backwards Compatible With Legacy 802.11a/n/g/b Networks, Windows 7, 8/8.1 & 10, : MacOS 10.12 supported, Linux kernel 3.0 supported SIMPLE INSTALLATION – Easily Connects to Computer Via Included USB 3.0 Cable; Bonus Screen Clip Conveniently Hooks to Laptop Bezel or Desktop Monitor