Pros I'm still satisfied using them after two and half years.
DisplayLink techology allows multi-screen setup on even a notebook computer using only USB
Mechanically flexible design
Multiple input supported (VGA and DVI), possible to select source
Cons The two monitors I bought have different sharpness of the LCD, one appears to be slightly software than the other. However, there is not a problem that affects usability, it is not even considered a quality problem, just shows a little manufacturing incon
Summary Multi-monitor over USB
First of all, DisplayLink works as advertised. I connect on LCD to the VGA output of my computer and another one to the USB port (second monitor). After installing the DisplayLink software, I was able to extend my desktop onto the second screen. Because this model has the ability to rotate, it allows you to take full advantage of the wide screen format by turning it 90 degrees into portrait orientation and read very long documents. It's very useful for programming because you can see more code at once without scrolling. Many web pages display fully. The rotation is not automatic, you have to indicate the orientation using the DisplayLink software.
The monitor has a mechanism that allows you to adjust its height, which came very handy to achieve the optimal ergonomic setup.
The monitor is not permanently fixed to its adjustable stand. You could remove the back screws and mount on a monitor arm available for some desks and achieve maximum desk space and mounting flexibility. I haven't done it, but I would like to get two monitor mounting arms for these monitors and have additional space.
The screen is matte instead of reflective, which is what I prefer. They are clear, crispy and easy on the eye.
Each monitor has four USB ports and can be used as a USB hub. Several monitors can also be daisy-chained.
Each monitor has two inputs - an analog VGA and a DVI. So I was able to share the monitors among three devices: One to my notebook computer's docking station, which is connected to one monitor using VGA (Monitor A), and another using DVI (Monitor B). This way when I need dual-screen, I can have it. Then I connected my other computer to Monitor B's free VGA connector, and when I need to use it, I simply press the "Source" button on the monitor to switch between the two computers. The third device is a standalone DVD player I have that uses a HDMI to DVI cable, which I connect to Monitor A's DVI connector. When I need to sit back and watch a movie using my DVD player (region-free), I just switch to the DVD using the "Source" button. This set is very useful for someone like me to take full advantage of multiple input sources without using up a lot of desktop space.
One thing worth to mention is that this model supports 720p HD, not 1280p HD signal from a HDMI to DVI cable connected to a HD source. So you can use it with various DVD, Bluray, or TV, provided that the HDMI to DVI cable does not carry the content protection feature of the HDMI specification, which is not a problem with DVD players, but might be for a Bluray, which I have not tested.
Over all I would definitely buy more of this model, even today, if I need more matching monitors to do my work. I am very satisfied with the features and flexibility of these monitors. They are especially suited for notebook computer users who do not have the options of dual-output docking station. Or any computer users who need to connect several monitors.
Pros It's clear and vivid in color
Cons For no apparent setting changes, it just went to Power Saving Mode & can't use my PC because the screen is blank. Alternating between unplugging the power cord on/off and/or the signal cable to PC sometimes works but not all the time.
Summary I like the sharpness and color of the images. I like it when it works but right now, it I am not happy because it went itself on Power Saving Mode forever and currently looking for help in taking it out of that sleep mode. It's frustrating to boot and reboot, play with power cord and cable just to wake it up. HELP!