TESmart HDMI KVM Switch 4 Port 4K@60Hz Ultra HD 4x1 with 4 Pcs 5ft KVM Cables Supports Keyboard & Mouse Pass Through USB 2.0 Device (Black)

Was pretty skeptical of buying this after reading some mixed reviews but I decided to give it a go. My 4 connected devices are:- USB-C Macbook Pro 13 (work) with HDMI and USB connected through the official Apple multimedia dongle- Macbook Pro 13 (2015 model) directly connected HDMI and USB- Windows 10 VM running on Unraid with HDMI connected to a GTX 1080 and USB connected to Fresco Logic USB 3 card- Unraid Linux box with HDMI connected directly to the intel integrated graphics on the and USB to an integrated USB portFor the monitor I have an LG ultrawide running at 2560x1080 @ 60Hz and I have a Logitech GPro keyboard and G502 mouse.Cons:+ Might as well cover the cons first, since there's really only one major one. The Logitech G Hub software is VERY hit or miss. A few times its worked, sometimes it just says "connecting" forever and never works. On Mac it did nothing, and on windows it kindof works. If you plug the mouse/keyboard into the non mouse/keyboard ports logitech always sees it but you lose hotkeys and it disconnects/reconnects on each pc change. I got around this by storing the Logitech settings in the Onboard Memory of each device and then just plugging them into the KVM keyboard/mouse slots. I don't regularly reconfigure these, so it was ultimately a really small price to pay.+ Only other con, is that occasionally things connect a bit weird or get out of sync. The biggest culprit of this I have seen is on the USB-C mac. If you try to connect to a non-Apple branded USB-C switch things don't work very well at all, but using the Apple branded USB-C to Multimedia adapter things generally are pretty smooth, although sometimes the mouse appears to not work on a reboot. Generally clicking the power off and on resolves most issues, and issues have been fairly infrequent.Pros:+ This thing is awesome. The EDID emulation works VERY well with my monitor and resolution. I get true 60HZ output from all devices and switching takes maybe a second or so. I previously had some other switches/KVMs and had huge lag especially when toggling between the macs and windows. Also the EDID emulation prevents the mac auto-locking all the time when toggling monitors.+ The "hotkey to select input" is simply amazing. Hitting Scroll twice and the number to select a different input is a legitimate game changer. I can now quickly flip between all the devices cleanly.+ The audio passthrough also works very well. I have a small soundbar hooked up to the 3.5mm output and the HDMI switches very cleanly 90% of the time. Occasionally I get a slight "pop" sound, but its not that loud, and I haven't had any issues or lag with audio, so really happy here also.+ Its nice they provide a regular USB port, although I probably won't typically use it. It does allow normal USB passthrough, so thats appreciated.+ The keyboard and mouse passthrough for the most part works really well (minus the caveats in CONS). I can use all the special functions on my Logitech GPro keyboard such as volume and multimedia keys, and everything I normally do works as expected. After finding out about onboard memory in Logitech, the loss of GHub really isn't a big deal anymore.+ Buttons on the switch work well and are easy to press if you need them.+ Blue lights are noticeable, but definitely not over-bright. I've had quite a few devices with LEDs that are borderline blinding in the dark, but these while easily visible won't blind you in a dark room at all. I really appreciate they chose a more dim LED.I haven't used the remote or the mouse to switch functionality at all, and likely won't, but thats not a con for me, as I just don't need it. This KVM really exceeded almost all of my expectations, and the cons are definitely able to be worked around and I can live with them. This KVM isn't cheap, but its also not the most expensive out there. If you're in a WFH environment and need to quickly switch and can keep the cables managed this is definitely a great option to consider!

UPDATE: I am still pretty happy with this 2-port KVM, so much so that I bought a second one to replace the old VGA KVM. While this new unit works, the "buzzer" that is supposed to tell you when you change computers of if something goes wrong, DOES NOT WORK AT ALL! Does not seem like a big deal except those sounds would have let me know about some initial connection issues - IF THEY WERE WORKING. I am tempted to take a star off my previous rating but will try to get used to the silent treatment while using this second unit. Still recommending this product, however.Since I like to start and end with an "up" comment, let's start with set-up. Reading the manual (what there is of it) is hard to follow but OK. I give the manual 3 stars for organization and 2 stars for completeness. Plug this here and plug that there then turn things on. However, don't turn both of your computers on at once. Things go sideways if you do, and the easiest way I found to fix that is to shut down everything and start over.OK - let's go for the more positive side. Start 1 computer at a time and BE PATIENT!. You will get all kinds of beeps so just wait a couple seconds until they stop. Until then your keyboard and mouse won't work. That's OK! I did not get any more beeping issues when I started the second PC and keyboard and mouse worked right away. Now I switched to a wireless keyboard but left the mouse wired. ForTESmart's info, my Logitech K520 wireless works fine so you can add to your manual that this works. I did not try a wireless mouse. Considering I am using a PC connected through this KVM, it is working just fine.Please be patient with this unit when changing computers. There is a little lag - maybe a second or two. However, when the screen changes it is perfectly correct with no hesitation. The EDID works flawlessly. I have used KVM's from another mfr in the past and my last one is still in operation but is almost 7 years old and it is only VGA and not HDMI. Considering inflation it was the same cost then as this KVM is now so I am very happy with comparisons in this review. I was extremely happy with my previous unit and am just as happy with this one now - keeping fingers crossed that it endures. If this TESmart 2-port KVM lasts as long as my previous unit, it will be a home run!Wanted to give you all that info to read because these devices can be vastly different. I love giving mostly positive reviews for reasonably priced items and hope this helps. I will update if things change in time but as of now I definitely recommend this KVM.

I like the on/off button that allow the monitor to turn to sleep mode, the way also the check if on of the laptops is online is a great feature as well, and accepting high resolution is great