Does the hdmi switch need plug in to be power supply for it to work?

Yes - it needs to be plugged into a USB port (USB cable is included).

Questions & Answers: Rosewill 3-Port HDMI Selector Switch, 3x1 Pigtail Splitter Cable 2.0 with Input Device Switching, 4K Ultra HD, Full HD 1080p 3D - RCHS-18001

double click image to zoom in

Rosewill 3-Port HDMI Selector Switch, 3x1 Pigtail Splitter Cable 2.0 with Input Device Switching, 4K Ultra HD, Full HD 1080p 3D - RCHS-18001

Plug and Play HDMI 2.0 Selector: Easy to use 3 input and 1 output; save time by connecting up to 3 devices at once with the 2 ft pigtail cable and support for 15 ft max input cable length
Supported Video Resolutions: Ultra HD 4K/2K@60Hz (60 fps), HDMI 2.0, HDCP 2.2, HDR, Full HD/3D, 1080p/720p video resolutions
Supported Audio Formats: Dolby Digital, DTS, Dolby-TrueHD, LPCM 7.1
Wide Compatibility: Supports highest bandwidth up to 18Gpbs; perfect for PS4 Pro, Xbox One S/One X, Chromecast Ultra, DirecTV, Roku Premiere+ and more; transmit HDMI signal up to 50 ft without losing picture quality
Easy Device Selection: Auto port selection enables your most recently activated video source; manual port selection to choose your HDMI source with easy-to-use panel button

Out of Stock