Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Will I be able to just use this for slide show presentations converting from vga ro dvi-d?
Document: Used this adaptor to add a second vga monitor to my current set up. My docking station (like most) has only one vga port that was already being used. I was able to convert the dvi-d port on my docking ststion to a second vga port with this. Saved me from having to buy another monitor that is dvi-d ready.
I had tried to use all kinds of adapters to try to get my vga screens to work this was the only one to work by powering the adapter with the supplied usb cord.
Unit functioned intermittently and would not hold the monitor's native resolution (1680x1050) on OSX Mavericks. The only option was to unplug and replug the monitor's vga cable while running.
I got this to hook up my computer to my TV, which it should do, but does not do the job properly. It was only able to display the two lowest settings and wasn't able to properly pump out the setting I wanted, 1360 x 768, which my TV has handled in the past over that port. I even plugged in the USB power and no effect.
No complaints--this works just fine! I bought several monitors without checking what ports the video card I had just bought had, and when it arrived I found that instead of having three VGA ports like I hoped, it had ZERO VGA ports! Thankfully this shipped quickly with Prime and led to my actually being able to see what my computer was doing!
For adapting an older analog VGA style monitor to a DVI-D port, this item works as advertised. You may have to play with the monitor resolution settings to get the monitor to look just right, as windows is not going to be able to auto-detect what resolution the old monitor is. I got a decent appearance after trying a few different options.
The flickers don't last long and it stays working for most of the time I use it. It has also never went completely dead on me.
The device works is able to convert from DVI to VGA i used it with with a dual monitor set-up and KVM switch.However the problem the device does not provide the resolution it specifies. The specification states the device is capable to outputting up to 1900x1200 i tried multiple configuration, with the KVM and without and the device did not provide said resolution.Contacted startech.com and the came to the conclusion the device is faulty after about an hour of troubleshooting and testing multiple configuration.
All i had to do is hook this up to the computer and plugged the vgs from the monitor into it, that's it! I didn't have to use the extra usb cable for additional power or anything like that. My monitor came on with the right resolution and everything in place. This item gets the job done for me and very straight forward, love it!
When Amazon suggested I rate some of my recent purchases, I looked at this item on the list and tried to figure out why I purchased it. Then it dawned on my that I have it on a monitor that I use every day. If it is used every day and I forgot that it was even there, this device is exceeding my expectations.
Answer: The adapter will allow you to convert DVI-D to VGA.  In essence you will be able to attach a Projector with a VGA input to a DVI-D port on either a workstation or laptop.  It works perfectly!  It even has an additional USB power input on the connector itself if the DVI-D port on the system requires additional power for the digital signal.