J-Tech DigitalProAV Ultra HD 4K HDMI Matrix 4X4 Switcher 4 Ports Inputs and 4 Port Outputs Supports 4Kx2K@30HZ, HDCP, 3D & Deep Color, HDMI 1.4 Compliant with Control4 Driver Available

4 by 4 matrix. It works great, and sound comes through without a lag that I notice.I have only used it for presentations, but it saved the business a fortune!

Great product so far, i am using multiple tv's with different resolutions and all are remote to the switch with a Cat 6 extender between matrix and the tv. This unit handles the EDID functions flawlessly and also has a great web page for setup and switching capability.The only two things that would be a fantastic add are a switchable audible beep when you are switching inputs and outputs, it helps to ensure the matrix actually received the remote input with audible response. The second would be to have a matrix page which has the user defined naming convention on that page, to help with switching via the remote page.4 stars so far.

Previously I was using a 4x2 HDMI matrix switch but needed more outputs for future additions. Something that I especially like is that when I select a different output/input combination is that the ONLY output that blanks out is the output being switched. All the other outputs remain on supplying video from whatever input they are selected to. My old switch would blank out everything while it was switching and the old switch took as much as 10-12 seconds to switch. That was a pain. This switch switches in a couple of seconds.It was easy to configure. Rather than having to change my computer IP address to connect to it's web interface I used the front panel menu to switch it into DHCP and rebooted it to grab an IP address from my router. After finding it in my router I was able to logon to the matrix switch with my web browser. It has a nice web interface for configuring the switch including setting up EDID if needed and establishing defaults relationships between inputs and outputs and if desired configuring multiple input/output combinations that can be selected remotely or from the front panel.All-in-all I'm satisfied.I'm revisiting this to say that I really like using the web interface to remote control my 4x4 switch. This is a great convenience. You can also see at a glance which outputs and inputs have live connections and see which is lined up to which output The web interface also allows you to control the onboard audio outputs, control the EDID configuration, he network IP configuration and system o reset the system password, reboot the switch. I think too the firmware is able to be updated as well.I just found that J-Tech has an Android app to remote control their products. I installed this from the Play Store and It works great. It's even easier to use than just launching the web interface from my phone because the web interface from the phone has way more controls and you might need to expand the display size with the pinch zoom. This Android app is much clearer to utilize. You can name the inputs and outputs, they you just touch the name of the output you want to switch then he app pops up a menu listing the names of your inputs to select from. Really slick and easy.Update: The more I use this matrix switch the more I like it. It's a great convenience being able to switch it from an app on my mobile phone. On the other hand I cannot say the remote included with it is any good. It has to be pointed directly at the sensor to get it to receive the signal. My phone on the other hand because the switch is connected to my home network via Ethernet cable can be switched from anywhere in the house.Again all-in-all I'm very satisfied.

Got this to replace a switch that our contractor installed for us in our multi-purpose hall (didn't work for some user's laptop somehow, and contractor couldn't figure why), and it worked instantly.The HDMI extender via CAT 6 cable is nice, it came with PoE.I am no professional in AV installation, but this unit worked the first time. Connects to 3 input sources and 3 output monitors(2 projectors and TV).Their site has good resources for understanding about AV technology.Good product!

You cant read the numbers or what it says on the display. Numbers/letters are very small on the display and the backlight is way too dim to be usable