Summary: Many reviewers already posted the same problem I have. When computers are booted, sometimes it works, sometimes it doesn't. When it doesn't work, I have to shut down both computers, unplug everything, plug everything back in, and boot the computers again. It'll work for three, maybe four boots, then I have to go through this process again. I keep hoping I'll find the magic set of steps to make the switch work all the time, but so far, no luck. YMMV.
Excerpt: I bought this product about 2 weeks ago and have been pulling my hair out ever since. I'm now looking for a new one because it is just awful. I use it to hook up a Mac Mini and a Win8 laptop to a monitor that is less than a year old, a wireless keyboard and mouse, a printer, and a USB audio system.
The mouse issue isn't really an issue if you do this.
Josh Davidson, Amazon
19 March 2015
Summary: Product works perfect arrived on time and packaging was great. As the other people posted this has some issues with using high end mice such as a steel series mouse at first I had an issue where the mouse would only move horizontally, however all I had to do was double tap scroll lock really fast until the keyboard lights began to flash then on my keyboard press the letter M and Enter and it turned off some kind of setting and it now works perfectly.
Summary: This is a revised review. I'd initially given it two stars, mostly because in order to set it up you have to have a wired keyboard in order to use any USB accessories (printer, sound, etc), but since then I've had a much bigger problem--the video. My monitor often blacks out for a few seconds with no indication as to why, and then sometimes when I turn my computer on the monitor doesn't come on at all until I unplug and replug the HDMI cable.
Summary: The item shipped on time without any damage. It works as advertised. The switching works really fast. As soon as you press the button it switches. I use thus thing to connect my monitor to my main gaming PC as a secondary monitor and to connect to my laptop with a broken monitor. I have Linux installed in that laptop and I use it for Linux gaming. So far no issues with the refresh rate of my monitor.
Excerpt: Though this kvm is good, it really lacks. I expected this to be more modern & in tune with what is out there, not limited as much as it is. Hooking up the two towers to the tv, easy enough. The refresh time is annoying, & you have to set it each time you start the computer-dumb. I don't want it each time. I picked up a powered usb hub, so I could finally link some drives, & printers between the computers. Tried getting it to work-no go.
... new computer and I wanted to be able to easily switch my mouse/keyboard/monitor between the new computer and the ...
11 January 2015
Summary: I bought this because I am building a new computer and I wanted to be able to easily switch my mouse/keyboard/monitor between the new computer and the old computer. It works ok, but it is unable to utilize the full capabilities of advanced mice and keyboards such as the Logitech G600 mouse or the G15 keyboard. I think this is because it doesn't simply pass the signals through, but actually generates a generic mouse and keyboard signal.
Summary: It works well with the screens, but mouse, keyboard, and audio having problems. It does not support additional/programmable keys on the keyboard, if you're using your mouse intensively, it start to lose mouse positioning and mouse appears not where it suppose to be, as for the audio, constant noise coming if nothing is playing which is very annoying and requires to turn speakers on/off all the time.
Summary: As a few other reviews have stated - the mouse and keyboard emulation for this KVM is complete garbage and should be disabled upon first installing - before doing this the keyboard input lag was almost unbearable, and the mouse movement speed almost tripled when compared to being plugged directly into the computer. To do this use [Scroll Lock][Scroll Lock] + [M][Enter] to turn off mouse emulated, then [Scroll Lock][Scroll Lock] + [N][Enter] to disable keyboard emulation.
Do you have a Macbook? This product probably won't work for you.
2 January 2015
Summary: I had a PC and a Macbook Pro (Early 2011) hooked up to this. The monitor constantly dropped out when connected to the Macbook, every 1-10 seconds. I contacted IOGEAR customer support, they tried blaming my Mini-Displayport to HDMI adapter (my only option for video output on this Mac), and where no help at all, offering no other options or diagnosis. Completely unusable.