Review on 🖥️ CKL HDMI KVM Switch 4 Port Dual Monitor Extended Display (Model CKL-942HUA) by Tony Addis

- The HDMI and DVI ports on my PC can output 4K 3840 x 2160 @ 60Hz normally when connected directly, but the passthrough doesn't work at that resolution even when I lower it to 30 Hz. In both cases I can see the image, but it is badly distorted and unusable. The display port output works with an HDMI adapter, but only at 30Hz. Keyboard connector on KVM not working. When I connect a keyboard to this port, the keyboard doesn't work at all. On the other hand, if I connect to a USB 2.0 port, it works. Mouse port on KVM is not working properly. It works fine with my PC, but when I switch to my Mac, the mouse moves but I can't click. It doesn't make any sense to me, but that's what happens. On the other hand, if I connect to a USB 2.0 port, everything works. - Sound NOISY.tldr; If you wrestle with the video outs long enough and use a USB hub for the keyboard and mouse, most of the time it works.