I've used these quite a few times.. Works great and is still working great about 2 years later.
I replaced a Phillips manual, push-button hdmi switch. This switch has improved the video quality emencly and the sound was improved as well. The auto-switching feature of this switch works seamlessly and flawless. The build of the device is very solid and of upmost quality. Overall, Incredible product that I highly recomend. I generally do not review products I buy, but I am so impressed with this product that I was compelled to do so. I am an a/v installer and I consider myself highly experienced in home and commercial electronics.
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I have used MCM for many years and would give high recommendation for getting the job done right.