So, letâ€™s look at what you get in the box. The DualHead2Go unit itself is constructed from solid metal and finished in black. At one end is a single D-SUB port that connects to your notebook. Next to this port is a socket for the supplied 5V power supply, and a power indication light. The other end sports two further D-SUB ports â€“ these connect to a pair of external monitors. Obviously the DualHead2Go is analogue only, but the reason for that is that every notebook has a D-SUB output, while only a few sport a DVI output. As well as the main unit, you also get a short D-SUB cable to connect the device to your notebook, a universal power supply, both UK and European power cables, and a utility/documentation disc.
Cracking open the DualHead2Go revealed that the circuit board already has solder points for DVI ports, so it shouldnâ€™t be too hard to produce a DVI version if Matrox feels that there is a strong enough market.
In practice the DualHead2Go works brilliantly. I hooked up two 19in TFT screens and connected them to a notebook via the DualHead2Go. The result was a 2,560 x 1,024 resolution display! Now, thatâ€™s a lot more desktop real estate than say, a 23in 1,920 x 1,200 TFT, but for a fraction of the cost. Considering that a 17in TFT screen has the same resolution as a 19in, you could produce a 2,560 x 1,024 external display for your notebook for under Â£300! A single 1,600 x 1,200 screen would cost you more than that and give you far less desktop area to play with.
Setting up the DualHead2Go is generally simple, but it does depend on your graphics chipset. I found it far easier to configure the DualHead2Go on a notebook running an nVidia chipset, than one running an ATI chipset. This is because dual monitor support is just easier to configure using nVidiaâ€™s drivers â€“ thatâ€™s not to say that you canâ€™t do it using ATIâ€™s drivers, just that itâ€™s a little more convoluted.