Review on Enbuer 4X4 HDMI Matrix Switch: 4K Splitter Switcher With EDID Extractor, IR Remote Control, And Support For 4K HDR, HDMI 2.0B, HDCP 2.2, 3D, YUV 4:4:4 At 60Hz by Russ Conrad

I purchased this item and had problems with the video and audio not working in one of the hdmi ports regularly. I ended up getting it refunded and purchased another one, hoping it was just a lemon. Unfortunately, throughout the time I had the new one, the audio would stop working sometimes, and in order to get it working again I would have to turn the unit off and then on again. A few days ago I had this happen again, and like always, I turned it off, but when I turned it on again nothing happened. The unit would not power on.I contacted the sellers to see if I could get a replacement, but they first wanted me to send pictures of the unit not turning on, trying a different power supply, etc. I had to email back and forth a bunch telling them explicitely nothing works, the unit is dead, and at the end they still seemed skeptical. I asked them to replace the unit and they finally informed me that I am right out of the 1 year warranty.I would not recommend to buy this unit at all. It is a faulty product and seems to have problems with multiple units. I never actually had it work without any problems. I just dealt with the problems every once in awhile. Instead, I should have kept sending each one back until I got a unit that worked correctly, if even possible. But for its price, it really should be backed better by the company. It is quite an expensive piece of equipment and I am out a good amount of money because the item is so faulty.