USB Port USB adapter - 2 ports

Advantages: use for more than one computer, fast, easy to install
Disadvantages: none

...This is a good high speed usb adapter to use. I have used it for the past few weeks and I really like it. I have had no problems with it and it is very easy to install. I paid 50.00 for mine and I believe that it was a wise choice on my part. I can run my computer faster and its security is pretty good too. The computer seems to go 2 to 3 times as fast as it had been going. You can plug in up to five ports or so for access. I have a total of three computers running on it and it works great for all. I have not even had any of them freezing up or anything. I really like how it works. You can use it for your wireless. This adapter is small but works as good as most. It does not have any anteena on it either.... Read review

Ciao members have rated this review on average somewhat helpful

Advantages Cordless, Quite Cheap, WebWheel
Disadvantages Can get dirty with having a ball, Needed adapter to change to PS/2, No other disadvantages

...Firstly, lets start with the details of this product. The tag line for this product is `Easy scrolling with cordless freedom`. * There is no cord to slow you down * Innovative wheel for easy scrolling * Designed to fit right or left hand This product enables you to stop struggling with mouse cords that catch, tangle and limit your movement. It will work within a two-meter range of the receiver and without having to point at the computer, thanks to the digital radio technology that has been used. * Quickly navigate the web and scroll * Customise buttons * Built to last * Compact, easy-to-install receiver The logitech cordless wheel mouse can plug into either your PS/2 port or USB port, thanks to the USB to PS/2 mouse adapter included in the box. The other things in the box when you purchase the Logitech Cordless Wheel... Read review

Advantages Beautifal, Comfortable, Ambidextrous
Disadvantages Expensive, Short Cable, Left/Right Button issue

...and right mouse button, as well as the 'nipple' having the ability to be pressed and side buttons which when squeezed together are another button. These buttons can be configured to do pretty much anything you like via the easily configurable preferences. Critically however, the side button is sometimes a bit hard to press and sometimes the left and right buttons pose a problem, because of the mechanics, if you rest your finger on the right hand button and click the left it will fail to register the click. Optical The mouse has a very well shielded optical sensor allowing it to rnu on any surface very precisely, as opposed to a ball mouse. The feel of it on a surface sometimes grinds a bit when the bottom gets a bit too much dirt on it. USB It is connected via a wire to a USB port, the cable is very short, about 1 1/2 feet maximum, either plug... Read review

Advantages Can dispose of 3 monitors, keyboards and mice.
Disadvantages Not future proof. USB only machines may not work.

...A simple yet functional device that allows up to 4 PS/2 based machines to be controlled from a single Keyboard, Video and Mouse. Mine came free courtesy of a very speculative request on FreeCycle and has given trouble free performance since then, so excellent value for money as far as I am concerned. Only potential downside for the future is that the box only has PS/2 connectors and most new PC machines no longer have PS/2, only USB. I did try a couple of USB to PS/2 adapters but they did not seem to work with this device. Only bugbear for me in terms of general use is that the Select button only goes from one port to the next in one direction, therefore to switch from port 3 to port 2 you have to click three times and go all the way around the loop. The ability to jump directly from the currently selected port to another specifically... Read review