Summary: I really use a small fraction of the features on this KVM. I haven't tried configuring the OSD or user login features yet.
Pros: Works as designed for the most part. Buying the kit version with cables for all the ports and rack mount brackets was significantly cheaper than buying Dell's KVM option for their 24U rack.
Cons: I had to reset it once because my mouse stopped working and some keystrokes were dropping, but I was using a PS/2 mouse and keyboard attached to a PS/2 to USB adapter plugged into the KVM's keyboard port at the time.
Summary: Fails with Win XP, Linux, FreeBSD, Mac OS-X 10.6. Fails with Nvidia, ATI, Intel, and other video cards. Fails with multiple monitors. Monitor size makes no differance, resolution is the issue.
Pros: Uses Iogear cables
Cons: Fails randomly with high resolution video inputs. Iogear tech support is no help. Avoid if your plans include a monitor larger than 20 inches (per Iogear). Avoid if you want modern (above 800x600) resolution.
Summary: Using this on 4 servers and 1 PC. Switching between systems is actually fun: Scroll lock twice, scroll to the system, hit enter, and away you go. No more fumbling around for a KVM button to push and trying to figure out what system you're on. Video issues are somewhat annoying but with this being used primarily for servers I'm okay with. If this was going to be used with my home PC(s) it would be unacceptable.
Pros: Super easy to install, setup, and use. Fast switching between systems. Ability to label individual systems via overlay is sweet.
Cons: Some ghosting and video degradation. Blue power LED in front will blind you if you look directly at it.
Summary: I will definitely purchase another. I have used many KVMs over the years and looked at the offerings from many manufacturers. It was better to spend ~$100 more on this one than the least expensive alternative as I have been completely satisfied.
Pros: Responsive; versatile connectivity options; has the important configuration options expected; well built
Summary: if using it in a rack, I recommend using 10' cables. I am controlling a couple of servers using this device, one of which was rack-mounted. The cable-management for the rack unit used all but 6" from my 3' cable. This would work extremely well in a desktop configuration as well as in a rack like mine. Using other accessories, you can setup your keyboard, mouse, and monitor up to 500' away using a Cat-5 cable.
Pros: Intuitive OSD! Capabilities for up to 512 computers using a daisy-chain method! Smooth operation using either the OSD or the hotkeys on the unit. Has worked flawlessly for just over a month now. Supports both USB and PS/2 flawlessly. For extra security, it supports usernames and passwords to login to OSD before you can access the computers.
Cons: Documentation seemed a bit on the low side. If you have ever used a KVM before, you won't need it though. Doesn't come with cables, so you must purchase them seperately.
Cons: On my second one. Sent back the first one. The performance is good until it isn't--by that, I mean that certain ports will start to go skittish, and will respond only intermittently. First one port will go, then another. Sometimes, a hard reboot of the switch will fix the problem temporarily. Sometimes not. After two tries, I'm tempted to give up and try to get my money back. I may try one more time. Get another one if you can.