Can this extend the desktop to a second display or does it just mirror the laptop screen?
1425056
It depends on the desktop settings. In most operating systems you can specify the second monitor (which is how it is identified) is in extend desktop mode or mirror mode.
77794
Yes you can definitely extend the screen. This is what I have done with my Windows 8 system.
880300
It does not support screen extending. It does support mirroring, of the main desktop screen, though it does have several seconds of lag. There are no functions that are blocked.
713604
No, this splitter will only show your desktop across the two screens. You'll need two separate feeds from your computer.
849280
Hello, I do not think that you would be able to connect an additional monitor unless there is a way to do that by USB
548620
I really don't know but that is an interesting question. Most laptops seem to have an easy way to use two screens and Windows will allow you to use more. You might try attaching a VGA monitor and trying for three that way, before springing for another USB monitor. If you try it and it works out, let us all know.
2277904
This device put out the same videos as its input video.You can do what is stated only with the laptop built-in monitor and your TV or an external monitor. Then you can set one of the two monitors as the main and other as the extended display. It is technically possible but may not really practical because the size of the two monitors is too different.
1459554
Yes, it can do this. I run Windows 7 and use this to stretch out my desktop, often running two windows, one in each screen. It requires two different types of cables to do so, so if you're deadset on dual HDMI ports, you should continue to look.
462925
I'm sorry but this is a splitter which will have monitor #1 mirror monitor #2. You want to have 2 VGA connections on your PC to extend desktop. You can also use a HDMI connection along with a VGA connection to extend.
1293592
It is only a mirroring function designed to show what is on your main screen on a second screen or projector. If you have a laptop, you can extend to two monitors, but those attached displays will always show the same image.
1562249
The monitor splutter is actually a second monitor. I'm assuming you are using windows 7. There are similar techniques for windows XP and windows 8. If you haven't already done so right click on a blank portion of your desktop and select "screen resolution". This should show 2 displays numbered 1 and 2; the laptop display (1) and the 29550 monitor splitter (2). You should also also ensure that under the drop down menu for "Multiple Displays" that "duplicate desktop on 1 and 2" is selected. Then click apply. That would be my best suggestion.
1059707
Yes - whatever output capabilities you have on your computer can be done with this. If you want to mirror or extend the monitor, that will work.
739951
No - it will allow your macbook to extend the desktop onto one external monitor.To add a 2nd external monitor, you'd need a USB driven graphics device.
1728817
I dont see how this is possible. Its used for two monitors on one computer not the other way around
813061
The video card should support dual screen. If you are asking about extending your desktop across 2 monitors, then that is video card software driven. If you are asking about showing your desktop on two monitors, again that is video card software driven. The video card that came with my system is a Nivida Gforce NTX650. If you right click on the desktop you should see Nivida Control Panel which controls the video card software. My card came with 2 video outputs, but you may have to get an adapter to get two monitors to work. Hope this helps.
492547
I use it to extend the desktop from my laptop to another monitor and it works just fine. I don't have personal experience beyond that. If you are extending to more monitors than the main and one more, you may be able to use two adaptors; just a guess.
2130313
All this does is put 2 monitors where there was one. The PC does not know that 2 monitors are attached. So you can't 'extend' your desktop from one to another, you just show the same thing on both.