Cisco-Linksys PS2KVM4 ProConnect 4-Port Compact KVM Switch (PS/2)

I had been using a Linksys 2 port KVM switch for years without a single problem so when it came time to add another computer, I naturally went with the Linksys 4 port model. Unfortunately, the 4 port model doesn't work nearly as well. The softkey controls on the 2 port model was a simple double click of any ctrl key. The 4 port model is a confusing and often times unsuccessful ctrl+alt+shift+<number>. Not only that, the keyboard and mouse appear to 'blink' out pretty regularly. Mostly the mouse, which will often freeze. This is quite annoying and I'm ready to throw this piece of product right into the trash bin. And I'm being nice!

I used an older manual Data Transfer Switch, and began noticing Ghosts on my monitor. After purchasing all new cables which didn't solve the problem, I figured it was the switch. Sure enough, this fixed my ghosting problem I was having immediately.This is an easy to set up thing, and I love the ability to switch between systems with the keyboard. However, like the other fellow stated in here, the plugs are MALE VGA. Most of us probably are converting from older equipment, which had female AT and VGA plugs. This has Female PS2 and MALE VGA plugs, as well as female PS2 Mouse plugs. ...You'd save half of that if you only have to convert the VGA plugs. However, one important note, the Plug that goes to your main Monitor is a standard Female VGA plug, so you don't need an adapter for that.When assembled (especially with the gender changers), the thing takes up a huge amount of space because the plugs are mounted on the side. If you plan on switching manually it will take a serious effort to keep all the cords hidden. But rest assured the keyboard switching method works just as well as the manual one. Simply hit and release, one at a time, the ALT, CTRL, SHIFT, Computer Number, and ENTER. Switches over like magic. So you can easily hide the whole thing behind your desk now (which is probably better anyway).There is even a LAST/NEXT mode but that doesn't make a lot of sense since the keyboard is locked until you get out of that mode.At any rate, if you're using an older switch, and notice Ghosts appearing on your screen (windows which have their white or brighter areas showing shadows of nearby window objects), this will fix your problem, but be prepared to spend a bit on gender changers. You may want to go ahead and just switch the entire cables out for new ones, but that could be a lengthy process depending on your setup, but only a bit more expensive than all the gender changers you'd need....

I bought both the linksys and belkin 4-port kvm products. On the linksys, I had problems with mice being recognized and having mouse clicks missed. On bootup, I could not have my laptop attached if it was not on port 1, since it would then think the mouse was not attached no matter what mouse or trackball I used.I have none of these problems with the Belkin product. Also, from an ergonomic point of view, the belkinproduct is set up much better, with the cables all attaching from the back (except the console mouse/keyboard cables). Also, the belkin product is less expensive.Obviously, I would suggest forgetting the linksys and buying the belkin kvm.

Buyers should be aware that this KVM switch does not have provisions for switching audio input and output. If you need audio switching, get a different unit.

It is in daily use for switching on my older, and less exotic computers.Currently using it to switch between three (Win-7, Linux, Win-XP) computers.It uses VGA and PS/2 connectors, but have had no problem with the MAJORITY (though not with all) USB<>PS/2 and VGA<>DVI adapters.The main problem is with the maximum supported monitor resolution being 1920 x 1440.Even though it is of cheap-feeling plastic construction, it has lasted all this time.I don't give out a lot of FIVES.

Switch was broken upon arrival. Could not get a signal through it, but when I wired video cables from different sources straight to the monitor, they worked. Ended up just buying additional monitor to view my security system dvr.

It works exactly it is supposed to. I would have given it 5 stars except for the lack of cables. Any KVMs I normally but have the cables included. I had to scramble to come up with 3 cables as it is. I'll have to order a 4th. At the very least it should be noted on the box or in the not so fine print that cables are not included. Likewise 90% of the cables for KVM are male to male VGA makinig it even more difficult. Overall a good unit, but Linksys did not think this out.

BEWARE: This KVM doesn't pass the roll-up, roll-down and the thumb button on a Logitech MouseMan+ through to the computers. I would assume it has problems with the new Microsoft roller mice too.If you don't need these, it's a nice box, but if you EVER need them, you'll keep cursing it until you replace it.