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Mini DisplayPort Male to DisplayPort Female Adapter
Convert a Mini DisplayPort connection to full sized DisplayPort using this Mini DisplayPort Male to DisplayPort Female Adapter from Monoprice!
This adapter sports a male Mini DisplayPort connector and a female DisplayPort connection. You can plug it into the output of a laptop or PC with Mini DisplayPort output and connect it to a DisplayPort monitor using a standard DisplayPort cable.
Of course if we had to follow that rule and support all the different devices people bring to campus, we would need to buy many more adapters (we would need dedicated adapters from DP to VGA, different dedicated adapters from mDP to VGA, etc., etc., etc.). So we looked to see why the 5135 VGA adapter wouldn't work with this one. It turned out to be really simple.
This adapter does not conduct between pin 20 on the two ends. Pin 20 is where DisplayPort supplies power, and of course an active adapter like the 5135 needs to get power from somewhere.
We understand why the adapter might have been built that way, because a standard DisplayPort *cable* is not supposed to connect pin 20 end to end. That is because both source and sink devices supply power according to the standard, and a *cable* should avoid bridging the two supplies.
But here's the thing. This product is an *adapter*. It is rigid and short, and its only purpose is to make a device with a mini-DisplayPort into a device with a DisplayPort. But a normal device with a DisplayPort would still have power on pin 20 ... otherwise stuff doesn't work. Between this adapter and a sink device, you would still use a normal cable, which would still isolate the two ends' power supplies and satisfy the standard.
We cracked one of these open and had the Chem department's instrument lab carefully solder a wire from pin 20 to pin 20, and it works perfectly now. I'm about to send over the rest of the ones we ordered for the same modification.
It would be great if Monoprice could revise the product so it is not lacking the power on pin 20.
PROS: Works out of the box for passive, DP++ applications.
Can be modded to work for powered, active applications.
CONS: Has to be modded to work for powered, active applications.
I bought this to use with an Asus PB278Q 2560x1440 monitor with a Mac Mini that I purchased in early 2012. Using the monitor included DVI and HDMI cables, the best resolution I could get is 1920x1080 and 1080p respectively.
I was using an Apple mini-displayport to DVI adapter as well as a Mono Price HDMI mini-displayport adpater when trying to get this working. I also tried a straight HDMI to HDMI cable.
I ended up purchasing Mono Price items 5714 and 8119. When I received them, I connected the DisplayPort cable that came with the Asus monitor to each adapter and couldn't get either to show anything on the display.
After messing with things a bunch, I realized that the DP connector in the monitor hadn't locked into place. I was able to pull it out without pushing in the release button. It didn't seem to want to snap into place. Even after shoving the plug in *really hard*, it still appears to not snap into place.
However, when I tried switching the monitor to DP, a picture showed! I went to display preferences and there was a 2560x1440 option. Selecting it worked!
I also plugged in Mono Price 8119 and it worked correctly as well. So either Mono Price adapter seems to do the trick.
Lastly, I plugged in both adapters to my MacBook Pro (obtained in early 2012) and it too was able to display the full 2560x1440.
So, I have it working, but the DP connector on the monitor side seems a little questionable. I'm worried that if I jostle the monitor too much (rotating it, adjusting it, etc.), that the connection will get lost.
I may try purchasing a different DP cable and see if it works better. But for now, I'm happy with the monitor and both adapters.
PROS: Works perfectly
CONS: None with Adapter, small issue with monitor
PROS: Cheap...but too light to be an effective paper weight.
CONS: Flimsy construction. Poorly designed. Doesn't work.
Thank you for your review and truly sorry to hear the contacts stripped out of the Mini DisplayPort PID 5714. Would you be able to email a photo of the damaged contact? We do offer a 30 day return policy as well as a one year warranty on this item. For now if you prefer I can assist you in setting up an RMA for a replacement. Obtaining a replacement will be of no additional cost to you. Please let me know if you would like to continue with a replacement and I can get that started for you right away.
I do have two small issues to raise against this product and it echoes the previous review.
The width of the DisplayPort interface on the adapter prevents the use of the USB port immediately to the right of the mini DisplayPort on the current line of MacBooks (Pros, Air, etc), hindering a machine that already suffers from connectile deficiencies. Granted most modern monitors double as USB hubs, but those are usually situated around the sides and back of the monitor, rather than close at hand.
The weight of the adapter, combined with the weight of the DisplayPort connector also places some stress on the mini DisplayPort plug (due to gravity), making it difficult to use on machines with mini DisplayPorts that are well off the surface (Mac Mini/Pro, notebooks on stands or cooling pads). There is enough mass to cause the adapter to sag about 2-4 degrees when using it with my notebook flat on the desk.
Both of these issues could be solved with a short length of extension between the DisplayPort and the mini DisplayPort interfaces. And if it should cost more, I think people would be happy to pay a little extra so long as it beats Apple's exorbitant video adapter prices.
As it stands, it is a good product but with a few minor adjustments, it can be great.
PROS: Small, inexpensive, available