Summary: When I bought this device I was only managing *nix machines, and it worked great. Since then I have added a couple Windows and OSX machines to the mix and have discovered that mouse functionality over USB is essentially unusable.
Pros: Price, good physical design of unit and cables.
Cons: Mouse control over USB is very unreliable, can't cascade, can't even "fake cascade" via a port, no OSD.
Summary: I have two of these units in a professional setting and with weekly use (not daily) I now have a total of 8 ports unusable between the two. No help with upgrading the firmware since it's current.
Pros: Cost Keystroke control works easily
Cons: Not reliable Lost multiple ports quickly Not cascadable
Summary: Just an update to my review below. Newegg quickly did an advanced RMA and I received a working TK-1603R KVM switch without having to pay anyone shipping fees. Today I came in to work only to find the Mouse port is now dead on the switch.
Summary: Purchased this to go in my Server cabinet. Bought all necessary cables and wired everything up. Day 3 port 6 is dead with a blinking green "Select" LED. Trendnet wants me to pay shipping to RMA a product I barely owned. Otherwise it's a great KVM switch.
Pros: Excellent fast switching, environment agnostic (Windows, Linux, ESXi, BSD) no problems at all. Can be mounted at front of cabinet or back for easier access.
Summary: We have two of these KVMs in our server room and they have been rock stars. Never need to reset them like I did with an older PS/2 KVM. No issues whatsoever with lack of USB device recognition or anything like that. Would highly recommend this KVM.
Pros: Very little clutter because of dense cabling, broad compatibility, great price
Summary: there should be a recall for these devices or the manufacturer should reach out to all those who have to suffer at the expense of this horrible product.
Pros: lights work.
Cons: This is a horrible device. I do not believe those who have given positive reviews. I use this machine for daily operations at my computer service workshop in IL. This device is constantly unrecognized by different PCs (especially when USB keyboards and mice are concerned) and furthermore does not...
Summary: Well worth the price, but make sure you get a variety of cable lengths.
Pros: Didnt even power off the servers. Hooked it up to 6x Windows Servers (ranging in age from 7 years to brand spanking new) and 2x linux box's. Everything worked right off the bat (with the exception of the mouse in an oddball linux release).
Summary: Replaced an older PS2 style KVM. Becuse of the dual USB/PS2 console connector I did not have to replace my long and expensive console cable. Composite cables were very inexpensive and reduced lots of cable clutter. Very happy.
Summary: Good deal for the price, cables work well. I'd buy it again.
Pros: Decent build quality. Good price. Cabling is simple - one VGA connector on the KVM side carries the USB as well. Very dense - 16 ports of KVN in 1U.
Cons: 2-3 second video delay when switching between units. The shortest cables are 6 feet, I wouldn't mind having a 3 foot one available. No on screen display (unless it's buried in a setting I haven't found yet but I doubt it). Wall wart transformer, but I don't expect an internal power supply at this...