Used but working well. 

Product Description Latest Draft 802.11ac Wireless Technology. Works best with Linksys EA6500 Wireless-AC router From the Manufacturer Front/Rear Views Linksys WUMC710 Wireless-AC Universal Media Connector Easily connect up to four Ethernet-enabled entertainment devices to your existing wireless network and enjoy HD-quality video streaming. Ideal for: The fastest HD video and media streaming Instant wireless connectivity Streaming HD video and music Online gaming head-to-head Connecting multiple home theater or office devices Next generation Wi-Fi with speeds approximately 3x faster than Wireless-N* For optimal performance, pair with a Wireless-AC router like the Linksys EA6500 Smart Wi-Fi Router AC1750 Features & Specifications Latest Draft 802.11ac Wireless Technology Backward Compatible with Dual-Band Wireless-N and Wireless-A Routers Ultimate Speeds — Up to 1300 Mbps* 10/100/1000 Gigabit Ethernet Ports Advanced Security Quality of Service (QoS) for Smooth Video Performance Wi-Fi Protected TECHNICAL SPECIFICATIONS Model: Linksys WUMC710 Technology: Wireless-AC Bands: 5 GHz Transmit/Receive: 2 x 2 Antennas: 3 internal Ethernet Ports x Speed 4 x 10/100/1000 Setup Push-Button Wi-Fi Protected Setup Support: 24/7 Award winning Online Support Resources 90 days complimentary assisted support MINIMUM SYSTEM REQUIREMENTS Wireless: Existing Wireless-AC, dual-band N or A wireless router or access point Ethernet Port: Active Ethernet port on device to be connected Web Browser: Internet Explorer 8, Safari 5 (for Mac), Chrome, or Firefox 8 or higher for optimal browser-based configuration HD/3D Video Streaming: Requires a minimum of 100 Mbps transfer speed. Actual performance may vary PACKAGE CONTENTS Power Adapter * Maximum performance derived from IEEE Standard 802.11 specifications (draft specifications for 802.11ac). Actual performance can vary, including lower wireless network capacity, data throughput rate, range and coverage. Performance depends on many factors, conditions and variables, including distance from the access point, volume of network traffic, building materials and construction, operating system used. 802.11ac 1300 GHz is approximately 3x faster than 802.11n 450 Mbps. An 802.11ac router or access point will be needed to achieve 802.11ac performance. ** Secure push-button setup works with devices that support Wi-Fi Protected SetupT like Cisco Linksys EA-Series routers and others.