SIIG Portable USB 3.0 Dual Video Docking Station Adds HDMI or VGA Video Output, 2 USB 3.0 Ports ULTRA COMPACT - Travel size allows you to carry around in your pocket or bag to satisfy your connectivity needs for your ultraBook, hybrid tablet/laptop, desktops through a single USB 3.0 port anywhere you go. ALL IN ONE - Multi-interface supported: HDMI or VGA video output, Gigabit Ethernet(10M/100M/1000M, 2 USB 3.0 ports with charging, 3.5mm audio output, MIC input; **NOTE: Mirrored output to HDMI and VGA displays if both are connected. VIVID RESOLUTIONS - Supports 1080p up to 2048 x 1152 @ 60Hz ; Compatible with both standard and widescreen (16:9 & 16:10) aspect ratios to maximize your visual experience. LIGHTNING CHARGING - 2 USB 3.0 ports allow up to 1.5A fast charging for your mobile devices. BROAD COMPATIBILITY - Supports Windows and Mac OS ; Backwards compatible to USB 2.0. NOTE: Not working with Mac OS 10.13.4 and later updates until support for video over USB is continued in the upcoming 10.14 update. Recommend to stay with 10.13.3