The TESmart 8 and 16-port HDMI switches are professional grade switches. They're many times more expensive than the cheap little 3-6 port switch boxes littering Amazon because they're better engineered and more reliable.This is a review of the 8-port switch labeled "4k@30".This switch is primarily aimed at the professional integrator market as it comes with rack mount hardware, an IR extension and options for controlling the switch via IR, RS232 or Ethernet. Provided you have the space, it also works great in a non-pro level home theater setup as well.The switch comes very safely packed and in addition to the IR extension and rack mounting hardware, it also comes with an IR remote.Out of the box, the switch is configured to automatically switch inputs whenever it detects a source has been powered on so in that sense it's plug-and-play. However you may want to adjust its behavior a little. For one thing it emits an annoying loud beep whenever it switches sources.To adjust the switch you'll need a laptop running Windows and an Ethernet cable. They don't exactly go out of their way to tell you where the software is, but you should find it if you go to http://www.tesla-smart.com/Downloads and look for the link labeled "HSW0801AXX application for Windows XP/7/8/10". The switch uses a default IP of 192.168.1.10 so you'll need to plug the Ethernet cable into the front panel of the switch and your laptop and set your Ethernet card's IPv4 settings to some other address in that subnet (i.e. 192.168.1.9) and subnet mask to class C (255.255.255.0), then run the software. Switch the software to "Ethernet" (it may be called "Network" - I don't have it right in front of me) and tell it to find the switch. From there you'll be able to disable the beep, turn auto-switching off or on, and set the input display to shut off after a short timeout.One major drawback of this switch is the exceedingly bright blue LED display. I consider a serious design flaw that there are not controls to lower the brightness. If you're using this switch somewhere in your eye line I would strongly suggest investing in some dimming stickers to take the edge off those LEDs.The switch is listed as supporting 4k@30 content, but in practice I was able to run 4k@60 content through it without any apparent issues. My guess is that the chips being used to handle switching are only rated for 4k@30 but not artificially limited to it.I've had no issues using advanced functionality like CEC through this switch.EDID works flawlessly - even with devices that fail on other switches.Each input has its own button on the front panel, and of course the remote has a corresponding button for each input.The remote control is minimal and, in my opinion, not really essential. Most setups are going to rely on auto-switching which works flawlessly in my experience. The only time you're likely to be switching deliberately between different inputs is if you're using some kind of automation like a Harmony remote. (The TESmart switches are all in the Harmony database, BTW).You should be aware that this switch does NOT support HDMI 2.1, but to my knowledge no switches do right now. If not for this I would say this is likely the last HDMI switch you'll ever need to buy.Final thoughts:This thing is expensive but worth every penny. I have a cardboard box filled with a literal dozen $10 to $30 3-6 port HDMI switches that I've had to remove from my setups over the years because they flaked out, never worked right with certain features, didn't have enough ports etc... If I had just bought one of these in the first place I would have actually saved money. If you need more ports than your TV or AVR provides, getting this TESmart is a no-brainer. If you think there's even a chance you might one day exceed the 8 inputs on this switch (like say if you had an extensive collection of game consoles for example), I absolutely recommend going for the 16x version of this switch - you will not regret it.Pros:- Professional Grade- Reliable- Auto-switching- Configurable- Supports HDCP 2.2- Supports EDID- Supports CEC- Ready out of the box- More compatible than any other switch I've tested- Supports 4k (Actually works with 4k@60, though it's not rated for it)Cons:- Configuration requires a laptop and software (though the software is freely available)- Eye-piercingly bright LCD display- By default emits an annoyingly loud beep whenever sources are switchedI have been running multiple HDMI switches for 8 different computers for some time. I finally made the decision to make life easier and try to get them all on one single switch. I’m not sure what to do with my extra time and less stress after simplifying my life. I didn’t want the unit to trigger with an IR switch because my TV remote will impact the selections. This was solved by not attaching the IR in connection which allows full control with only the selector buttons on the front without impacting my TV functions. You can turn on and off the auto scan feature as well with a simple click of the Scan button. It not only looks nice, but allows you to organize your HDMI cords by bundles into the unit. It is easier to control and it creates a cleaner look. I like this unit a lot, but I plan to look into how to get the unit to not beep each time I select another HDMI connection. The beep is actually surprisingly loud for this unit. Regardless, it performs well and addresses what I wanted to solve.You get what you pay for. After trying many cheaper switches that were ultimately unreliable, I finally sprung and purchased this 16-port switch from TESmart. Thankfully I've had 0 issues with 4K HDR 60Hz content (even Dolby Vision) and all of my devices are happily connected to one HDMI switch. Highly recommended if you have a lot of game consoles/set-top boxes etc. Just keep in mind that it's HDMI 2.0 only, so no 4K120Hz or VRR. If you have a TV or Receiver that supports those features, plug your PS5 or Series X directly into that and use this for everything else.I’ve gone through all of the cheap ones and they never worked right. The old adage is that you get what you pay for. This works great. No problem at all. I just wish I’d done this sooner and didn’t waste so much money on the cheap ones. This is worth the cost.I needed at least a 7 port switch. I went with the 16 since it wasn't much more then the 8 channel.I'm using a 82" tu7000 samsung tv, a Nintendo switch,a fire cube, a Playstaion 5, a xbox series x , a dish hopper, a 4k surveillance system and a vizio soundbar successfully with this unit.I read some reviews that the xbox series x wouldn't work but it is working for me.It seems like new tvs don't have enough hdmi inputs so you are forced to use hdmi switches.I am controlling this box with a Harmony One remote successfully. To set up the harmony remote you find the switch under "tesla mart" I think Tesla mart might be the parent company for Tesmart.So far I am very pleased with the switch.I'll do a follow up review in a few weeks after I've used it for a while.Update:All of my consoles are operating correctly. My xbox series x and my ps5. There are reviews saying that these don't work but they are working fine for me.i love having this switcher, and not having to worry about running out of hdmi ports, it's a great investment and glad that i decided to get it. Easy to set up/use/operate. the only thing i wish was that the remote was numbered 1 to 16, instead of one number being assigned to two hdmi inputs. Whenever i go to another port and try to go back to "1" it takes me to "11" i have to get up and manually hit the "1" for that particular hdmi input