Why make everyone at your football party crowd around one or two HDMI displays? You can run up to four High Speed displays with this Monoprice Switch/Splitter, so everyone can have a clear view of the action! This device has two HDMI inputs and four HDMI outputs, so you can switch between two input source devices and send the signal simultaneously to four displays. No setup or special configuration is required, simply connect the input device s and output device s , then start using it! The unit also has a built in, automatically adjusting amplifier. This means that you can use longer than normal HDMI cables running to the inputs. The built-in amplifier will then regenerate the HDMI signal before sending it to the outputs. This lets you extend beyond the normal range 25 feet for High Speed 1080p signals. The unit supports video at resolutions up to 4K 30Hz and high definition audio signals, such as DTS Digital, Dolby , DTS-HD Master Audio, and Dolby TrueHD, as well as standard LPCM stereo. Note that you don't have to have two inputs and four outputs to use this device. You can use just the switching function if you only have one display or just the splitter function if you have only one input. IMPORTANT This is NOT a Matrix device and thus will not allow simultaneous use of each input source on different output displays. To see various Matrix devices, please click here. Support Files Quick Start Guide Jun 2, 2016 Blackbird 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. DTS is a registered trademark and the DTS logos, Symbol, DTS-HD, and DTS-HD Master Audio are trademarks of DTS, Inc. Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. Dolby TrueHD is a trademark of Dolby Laboratories.