StarTech.com 4-Port HDMI Automatic Switch - 4K 60Hz. Video port type: HDMI. Product colour: Black, Maximum refresh rate: 60 Hz, Supported graphics resolutions: 1280 x 720 (HD 720), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2560 x 1600 (WQXGA), 3840 x 2160. AC adapter input voltage: 100 - 240 V, AC adapter frequency: 50 Hz, AC adapter input current: 0.4 A. Certification: CE, FCC. Width: 51 mm, Depth: 123 mm, Height: 20 mm