This BlackbirdTM 4×1 Quad Multiviewer Switch is a high-performance multiviewer that supports four high-definition inputs displayed simultaneously on a single screen. It features four HDMI® inputs and a single HDMI output. It supports video resolutions up to 1080p@60Hz and supports multichannel; high-definition audio. It includes five display modes; three of which can display all four inputs at the same time. It can be controlled using the front panel buttons; the included IR remote control; or RS232 computer control. Features: Displays content from FOUR high definition input sources on a single display at the same time Customizable with 5 multiview modes 3-way control: Infrared Remote; via RS232; or manually Much easier to install and use than higher end multiview solutions Support Files: User’s Manual (Aug 22; 2017) BlackbirdTM is a trademark of Monoprice Inc. HDMI®; the HDMI Logo; and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.