4x4 4 In 4 Out 4K x 2K HDMI 2.0b Matrix Video Wall Controller Processor Switch

Supports ultra clear 4K 2K@60Hz. Product Type:HDMI Matrix 4x4. Interface Type: 4 HDMI in, 4 HDMI out. Automatically recognize the highest resolution of the output device, actively reduce resolution, and perfectly match 1080P power amplifier and projection.

eBay