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Question: Novice here...confused why some say in comments this is not a splitter. Need to connect bluray & DirecTV Genie client box to TV w/ single hdmi port.
Document: I bought to use with a Directv Genie recieve and BluRay player. It does not work with Directv Genie receiver.
bought unit  then i disconnect the satellite box and insert the pigtail of this unit then install the hdmi cable to port #1 ( which is connect to hdmi 1 or 2 etc to tv) then the dvd recorder and the only thing i see is that NO SIGNAL period when selected #1
This pigtail switch allows me to keep both machines - my upscaling DVD multi-changer player - AND - my new single-disc Blu-ray player - all connected to my TV and stereo components with fewer hassles. * Just remember - again, this is not a splitter - it is a switch that senses which input is "on" first and will deliver an HDMI signal accordingly.
Works perfect to allow us one extra HDMI port on our two-port TV. We have an Xbox & bluray player hooked up to it. The first device turned on gets data sent to the TV.I started with a chromecast plugged in, but that isn't ideal since it always has power and the switcher will always default to the chromecast. That was dumb of me. Once I switched it to two things that are normally off it worked as expected.
You then take the HDMI cable coming out of the other end of the switch and connect it to your hi-def TV or any other device that accepts HDMI cables. * Note:  This is NOT a splitter. What it does is automatically sense which of your players is on - and will send a signal directly to your TV or amplifier or whatever component you want that accepts HDMI signals. You can't have BOTH players on for this to work.
This device works very well with HDMI components that need to be switched back and forth from different devices to one viewing source. I use my Roku and Blue Ray DVD Player with it to a single monitor. I have no complaints.
Purchased this because my Samsung monitor only had one HDMI input.. This works perfectly! I ordered the 2 port version, but they sent me a 3 port model. Cant complain on that!It works off the back, both my Xbox 360 and cable box works with this! No picture quality loss at all. Buy this, you wont be disappointed!
I bought this cable because my LED only has 2 HDMI's and as you imagine in this days, you'll be seeing a lot of devices connecting to it through HDMI (Chromecast, cameras, laptops, console, cable box).So wanted to connect a cable box, PS4 and chromecast, and let me tell you...works great.
Works great! I like that it switches between devices automatically without having to go behind the TV and click the button on the splitter. This one works great for me!
With only one HDMI slot on my TV, my new blueray player had no place to connect  -  until I plugged in this  great little switch.So easy to do and it works great too.
Answer: It turns two hdmi inputs into a single input. It has a selector on the device that let's you switch between input 1 and input 2. So it's not technically a splitter since you have to manually switch from one device to another. Easy to use though, I enjoy it.