Cable Matters 4 Port USB 3.0 Switch USB Sharing Switch for 4 Computers and USB Peripherals - Button or Wireless Remote Control Switching - Includes a USB-C Adapter for USB-C USB4 and Thunderbolt 4

I have four computers at my desk, two laptops, and two desktops, and two main displays (in addition to lap top displays). I wanted to able to switch between all four computers, and fully utilize both main displays with each computer, without paying 100s of dollars for a more modern KVM switch with full HDMI pass-through for TWO displays.If you are not aware, Displays can be used through USB 3.0. A USB 3.0 path straight to a USB to HDMI converter, will allow that PC to utilize the display. Furthermore, "DisplayLink" based USB to HDMI converters exist, and allow the conversion of one USB3.0 path to two displays. This was amazing when it first came out, and is still amazing to me today. You can run a display over USB 3.0. There are other chipsets (e.g. Magic Control Technology Corporation) but as far as I can tell only DisplayLink chipsets would work with all types of operating systems.So, why do you care. With a USB hub sitting in this little dongle, you can connect your keyboard, and pass through to your DisplayLink USB to HDMI dongle. Actually, you can connect any USB device to this little switch (I connect a full USB hub) and any device on the other side (hard drives, anything). With this bit of information, you can almost do a full KVM replacement.There are some obvious caveats here. I doubt you would get full display performance through a USB 3.0 connection to your machine. But for work purposes (documentation, writing code, browsing) this is more than sufficient. And for the kind of gaming I am interested in, not really a problem.In the picture attached you can see one USB cable coming out the front left going into the SIIG Hub (which supports two displays via a DisplayLink chipset. You can buy cheaper DisplayLink devices to avoid the expense of a hub). The other USB cable coming out goes to my hub, which has a wireless keyboard and mouse dongle, and any drives (I have a DVD drive) I want to control. Press the button 1-4 and seamlessly switch between computers. Out the back 4 micro usb connectors do a USB 3.0 connection to each of the computers (the port on the far-back right is the USB-C power supply for the switch).Setting up DisplayLink on a Linux machine is non-trivial, and with Ubuntu 18.04 I couldn't get it to work. With Ubuntu 20.04 the normal install programs worked ok, though I used a "debian" install script which configured things properly. DisplayLink absolutely works with Mac and Windows and is trivial to install, so I have two windows PCs, a Mac, and Linux machine, all going through this switch. With the remote or hitting a button, I switch between machines. Awesome.So what's missing. Well, there's no audio pass-through with this type of setup, something you might get with a KVM switch; you would have to work with audio over USB, which seems to be about $12. Display outputs may be limited, as well as display refresh rates. It is relatively easy to get most of the machines working with DisplayLink, but getting Ubuntu to work was very difficult.Overall, really happy with this, and was able to dump my old 1 display SIIG KVM switch.

Connecting a Kinesis Freestyle2 keyboard and a Logitech Unifying mouse with three laptops. Works flawlessly and quickly. I'm using the included USB-C/DC Power-Supply. The LEDs buttons work great with bright visibility. Compact, good-looks, well marked, remote(!), and cool-TEMP. USB3 connections to your PCs is a must. Get it, you won't regret it...

Purchased to replace a 4 computer USB switcher that died on me.I like that it's easy to select the computer to switch the USB to and bright LEDs which identify the computer it's currently on. Works well for multimedia and storage. I initially had problems with some USB devices not fully working through the switch. Customer support reached out to me and were able to explain that some devices (those which require high power) could not be adjacent ports (Ports 1 and 2 share 5V 2.1A, Ports 3 and 4 share 5V 2.1A power). Upon rearranging my devices on ports, everything works perfectly.

I picked this up to replace a USB 2.0 sharing device I had from another vendor.This one seems to be perfect.- You can remove cables that you’re not using (I use this for 3 computers not 4). This is so much better than having an extra cable on your desk you’re not using. This was an issue with my old one.- No issues with buzzing with my Samsun condenser microphone. This was also an issue with my old one.- Webcam gets high frame rates. This was an issue too on the old one (but it was expected because it was USB 2 not 3 like this one).- Mouse dongle and wired keyboard work as expected.- There is a slick little on/off switch on the side (I’ve had 4 of these kinds of devices over the years and have never seen one before).- Super clear lighting that shows you which system is selected. I’m a tiny bit disappointed that the lights are blue and you can’t dim or change them (but that is probably expecting too much... though... for this price they did include a remote I didn’t want?).This seems like a pretty high quality product. I’ve only had it a few days so I’ll update this review if this doesn’t remain true.The only things I don’t like are the company logo stamped on the top of the device and the SUPER GIMMICKY remote control. I didn’t need or want a remote (and kind of resent paying for it a little). And, I’ll be removing that logo because it ruins the un-branded look I like in my office.Knocked a star off for the remote and the obnoxious branding. Other than those two things though... This seems like a 5 star product.I’m super happy with it and my gripes are trivial.

It was working fine for a month. However, when I unplugged my computer to change it's location, it started acting up. After hooking everything back up, my computer wouldn't recognize it at first. Then, I got it to recognize it, but my mouse was randomly moving around my screen or failing to respond. I hooked up the old one I had from a different brand and it worked fine, so the issue isn't my computer. I also tried hooking up the mouse and keyboard directly to my computer and that also worked fine. I tried a different cable and unplugged and replugging everything in, but it was still active weird.