USB 3.0 to Dual HDMI Adapter External Video Supports Windows Only - Feature: HIGH RESOLUTION SUPPORT: Add astonishing picture quality through the USB 3.0 port of your computer by adding support for video resolutions of up to 4K at 30Hz. NO POWER SUPPLY NEEDED: Connect the 4K UHD dual monitor adapter directly to your computer without the need for an additional power supply. WINDOWS ONLY: This USB 3.0 to Dual HDMI Adapter is only compatible with Windows operating systems and does not support mac-book devices. Specification Support Windows 7 / 8 / 8.1/10, XP (32bit), Vista (32bit) Mac OS, Support 1 USB input interface Support 1 channel 3.5mm stereo output Support 2 HDMI output interfaces Output resolution up to 1920x1080p 60Hz Supports USB3.0 and USB2.0 interfaces Material Metal Product size60x15x175mm Package: 1X Adapter 1X Manual