Mini DisplayPort 1.1 + USB to Dual-Link DVI Adapter
    Product # 6904
    Mini DisplayPort 1.1 + USB to Dual-Link DVI Adapter
    Product # 6904
    In Stock This item will ship on 10/24/2016 if ordered within 2 days 22 hours 55 minutes

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    Mini DisplayPort 1.1 + USB to Dual-Link DVI Adapter

    Connect your mini DisplayPort equipped MacBook®, laptop, or PC to a Dual-Link DVI display using this Mini DisplayPort + USB to Dual-Link DVI Adapter from Monoprice.

    This adapter converts DisplayPort video to Dual-Link DVI video at resolutions up to 2560x1600. Additionally, it can convert to Single-Link DVI to resolutions up to 1920x1080. The adapter is fully compatible with the DisplayPort 1.1 specification and draws the necessary power from both the DisplayPort and USB connections. Note that this is not bidirectional and therefore will NOT convert DVI video to mini DisplayPort. Also note that this does not support audio.


    • Complies with the DisplayPort version 1.1 standard
    • Supports Dual-Link DVI resolutions up to 2560x1600
    • Supports Single-Link DVI resolutions up to 1920x1080
    • Supports up to 24-bit Deep Color (8-bits per channel)
    • Draws power from the Mini DisplayPort and USB connections
    • Supports up to 268.5 MHz bandwidth

    Apple, Mac, iMac, MacBook, MacBook Pro, and MacBook Air are trademarks of Apple Inc., registered in the U.S. and other countries.

    RoHS Compliant
    * Attention Mac Mini Customers using dual monitors only. There is an unresolved issue with using both the mini-DVI and mini display port outputs simultaneously. Specifically – when the mini-DVI cable is disconnected from the Mac mini, this causes the mini display port to not function  – often causing the display to show an “unsupported format” error. This appears to be an ongoing issue with multiple generations of Mac minis (models with mini-DVI and mini display port) and also appears to be happening with a variety of manufactures display adapters for macs, not just Monoprice adapters.


    The solution – (Again, for dual monitoring Mac mini users only) Use the mini-DVI output for your main display, and the mini display port for the secondary display. That way - disconnecting the second display (mini display port) will not affect the output on the main display (mini-DVI). This will not be an issue if you are using two monitors - and are not disconnecting your mini-DVI adapter.  


    90 Reviews

    72.56% of the reviewers recommend this product

    • Alan Keefer,
    •  San Mateo, CA 
    • 3/8/2015 2:40:50 PM

    I've been using this adapter for a couple of weeks without problems so far, hooking up my Lenovo w540 laptop to my 30" monitor (through a KVM switch).

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    Hit and miss

    • Stock Loser,
    •  Rio Rancho, NM 
    • 1/15/2015 3:35:35 PM

    Pros: If you get one that works, it will be reliable, and you only occasionally need to unplug then replug the USB cable for all monitors to work well. Most of the time, I have no issues with this device.

    Cons: After having a flawless adaptor for over a tear, I decided to upgrade my monitor and needed a second one of these units. Ordered and installed it, but after 3 minutes, the device flaked. Worked for another minute then crapped out altogether.
    It seems that these units are hit and miss. Had good luck with one I still use with no issues. And another one will be en route to the RMA department shortly. I Love Monoprice, but I wish these items were more consistently good. The failure rate is high if you read the reviews. In fairness, I don't know if it's this brand, or the device is a poor workaround regardless of manufacturer????

    by Monoprice Administrator

    Truly sorry to hear about the issues experienced with PID 6904. Can you describe your setup including all devices and cables in use? What happens when you connect the adapter? Please let me know. Thank you for your cooperation in the matter.

    Gisselle B.
    Tech Support
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    Looses synch - defective design

    • Anonymous,
    •  Florham Park, NJ 
    • 12/23/2014 5:41:44 AM

    Unfortunately, this adaptor has a design flaw that causes it to loose synch resulting in the snowy screen several times a day. As you can see from these reviews, this is a common complaint. Monoprice was was cooperative in exchanging the unit for me but the problem existed on both. I also tested the units on two different monoprice monitors of the same model and two different macbook pros with the same results. So it's not just a defective unit. It seems to be a design flaw of some kind.

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    Turns to snow at least once a day

    • Nathan,
    •  San Jose, CA 
    • 12/8/2014 11:01:57 PM

    Pros: When it works it works

    Cons: Been having the turns to snow issue daily since shortly after purchase

    Unfortunately I assumed the issue was with my monitor, but after reading these reviews, I see I am not alone.

    For most of the time I have owned it, whenever the monitor turns on, from sleep, it turns to snow on the image. The solution is usually to unplug the USB power, and plug it back it, to power cycle it. Sometimes I have to unplug the cable itself from my computer.

    Here's a tip: pay the extra money and buy a monitor with a display port input, or buy a better adapter like the Apple one?

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    wouldn't buy again

    • Anonymous,
    •  Auckland, Auckland 
    • 11/3/2014 7:27:39 PM

    Pros: When it's working it looks fine

    Cons: Drops signal
    Frequent snow
    Sometimes just won't connect

    I purchased two of these at the same time for use with an off-brand monitor.
    I had assumed the issues were with the monitor, but it turns out all of these issues have been caused by the Monoprice adapters.

    From day one I experienced signal drop outs and static/snow when connecting the cable. At other times the display resolution would be detected incorrectly making my Mac show the wrong resolution with nothing on the external - crazy.

    The warranty period is only one year as these aren't considered cables. I wouldn't bother with these again, they've been a pain and aren't that much cheaper than the real thing.

    by Monoprice Administrator

    Thank you for your review and truly sorry to hear about the issues experienced with PID 6904. I will submit a complaint regarding these issues to our product team so they can look into the matter further. Thank you for the feedback - it is greatly appreciated! I apologize again for any inconvenience this adapter may have caused. Should you have any questions, please feel free to contact us!

    Gabby Villa
    Tech Support Associate
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