StarTech.com USB2DVIPRO2 USB to DVI Adapter - External USB Video Graphics Card for PC and MAC- 1920x1200

Pros: gives you an extra monitor

Cons: High cpu / ram usage, more expensive than a real video card. Slows down your pc, it's unstable even with latest drivers. Software will make other applications crash when the right keys are pressed (i.e. #2 key). Recommends a high speed usb port for decent performance. You will lose the monitor once in a while.

Overall Review: I only got this because the got micro towers at work, so adding a card was not possible. Use this adapter as your last resort.

Pros: Windows 7 install required no disk. Plugged it in and it installed itself. It also setup the display as a extended display automatically. This all happened in less than 1 minute. I am using usb 2.0 and was worried that it might be slow but it works great with hd video, web browsing and maps. Much better than I was expecting

Cons: Really no cons. I did not expect it to do good at high end 3d gaming.

Pros: Wasn't able to use

Cons: Does not have a driver for Linux. http://www.displaylink.com/ (the manufacturer of the chipset) claims that it is supported under Linux on their web site while in reality they cannot ship driver due to some legal consideration on DVI encoding

Pros: Supports OS X 10.8.2 with Alpha Driver, Multi-Monitor (Dual Display + Built-In LCD Display)

Cons: Occasional video flicker which is to be expected since the driver is still basically testing phases. May occasionally need to be unplugged then plugged back in to reset screen, again another driver issue.

Overall Review: While I've only had this product a few days, it did give the added ability to use my other monitor with my MacBook Pro (15 inch, Mid 2012 - 9,1). It allowed closed lid to just have the dual display or tri-display if I so choose. I was pleasantly surprised at how well it worked too. Dragging and dropping different windows to the other monitor worked as if it was part of the setup. I had Windows 7 (through Parallels 8) on the monitor through this setup and my Mac OS on my Built-In and Second Monitor all at the same time and didn't have any issues so far. It will not support the Quartz Graphics, so don't expect it to display the screen saver or support gaming. I will note it displays "Quartz Graphics" or something along those lines on the one monitor so images don't burn in to the screen. All in all, the setup functions well for my workstation. Coupled with a 7-Port USB 3.0 Hub for all my other devices, it replaces any need I had for a desktop when it came to software development. While a docking station would be nice, plugging in 3 cords (Power, USB Hub and USB to DVI Adapter) isn't all that bad. *I'll try to report back in a month or two on any/all updates.

Pros: Stability and quality

Cons: Wish the cord was just 6 inches longer. Makes cable management tricky (but not awful) with this shorter cord.

Overall Review: I've connected up to 5 1680 x1050 pixil monitors to a laptop (lid closed) with two of these in USB 3.0 ports plus 2 display port connections and one HDMI connection and the performance is flawless. The whole setup is responsive enough that you can't tell which of the monitors are using this adapter. As long as you're not trying to do full on high resolution and resource intensive gaming through this adapter you are fine.

Pros: (See previous review)

Cons: (See previous review)

Overall Review: I was eventually able to improve the video quality on this adapter by lowering the resolution to 1280x720. At this resolution, videos played properly.

Pros: Easy to install, software works perfectly - at least in Windows 7.

Cons: None.

Overall Review: I have been using startech for quite a few dual monitor setups and they are solid.

Pros: Let's me hook up a second monitor on my Mac laptop with little or no work

Cons: Seems to confuse my system. Several times when I have disconnected and used the laptop without either external monitor, it gets confused, seems to think one is still attached, and shows me a screen without the menu bar. This requires me to reboot to fix. Not a happy thing!!