DisplayPort 1.2a to 4K HDMI® Active Adapter, Black
    Product # 12781
    DisplayPort 1.2a to 4K HDMI® Active Adapter, Black
    Product # 12781
    Color : Black
    In Stock This item should ship tomorrow (10/28/2016) if ordered within 18 hours 21 minutes

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    DisplayPort 1.2a to 4K HDMI® Active Adapter, Black

    Connect your DisplayPort equipped PC to a 4K HDMI® video display using this DisplayPort 1.2a to 4K HDMI Active Adapter from Monoprice!

    This adapter is designed to allow you to connect an HDMI display to a DisplayPort video output. It conforms to the DisplayPort 1.2a standard and supports HDMI resolutions up to 4K (3840x2160p) @30Hz. Being an active adapter, it is fully compatible with the AMD® Eyefinity and nVidia® Surround multidisplay modes.

    It features a true 5" cable length with polycarbonate connector heads. The DP connector head measures 14.5mm thick, 25.5mm wide, and 31.0mm long. The HDMI connector head measures 17.5mm thick, 27.5mm wide, and 47.0mm long.


    • Conforms to DisplayPort 1.2a standard
    • Supports HDMI resolutions up to 4K (3840x2160p @30Hz)
    • ACTIVE adapter is compatible with nVidia Surround and AMD Eyefinity multidisplay modes

    HDMI, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

    AMD is a registered trademark of Advanced Micro Devices.

    NVIDIA is a trademark of NVIDIA Corporation.

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    25 Reviews

    88% of the reviewers recommend this product


    Worked great

    • michael eberhart,
    •  spokane valley, wa 
    • 10/5/2016 10:52:44 AM

    Allowed me to hook up my computer with a display port to my HD monitor with hdmi. Work great.

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    Cable Orders

    • Shaun St Jacques,
    •  Springfield, MA 
    • 9/26/2016 12:14:20 PM

    Pros: Everything

    Cons: None

    Monoprice is the best for ordering cables, a go to place. Thanks for having a huge selection and easy ordering process.

    Was this review helpful to you?

    Two Issues, otherwise great

    • Anonymous,
    •  Slymar, CA 
    • 8/9/2016 1:50:00 PM

    Pros: Good Quality
    Low Price

    Cons: Occasional flickering occurs (unlplugging and replugging the HDMI cable seems to fix it)
    Does not pass HD Audio codecs like Dolby TrueHD and DTS-MA (This is a limitation of the adapter type, not a problem with the product)

    This cable is great but experienced one issue with the actual product. I received some occasional flickering when using the adapter. Unplugging and replugging the HDMI cable seemed to fix it, but I don't know it will continue to occur.

    I was aware the adapter would pass audio, however, did not realize it was unable to carry HD Audio formats such as Dolby TrueHD and DTS-MA. LPCM up to 7.1 channels, however, works fine. Can't knock the product as this seems to be a limitation with adapters like this one.

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    Title a bit misleading since it only does 4k @ 30Hz or 60Hz/4:2:0

    • Anonymous,
    •  Aurora, OH 
    • 8/8/2016 3:57:36 PM

    Pros: Works, good for tight spaces, supports 4:4:4 chroma with audio (LPCM up to 8-channel 192KHz 24bit)

    Cons: Title can be misleading to the average Joe as this is an HDMI 1.4 devices

    Device works great for tight spaces (I only had 40mm to work with) and fully supports 4:4:4 chroma with audio up to at least 48KHz 24bit

    It must be noted that this is an HDMI 1.4 device which was more than enough for my needs (1080p TV), but it would be nice if the title for the product said HDMI 1.4 rather than "4k HDMI" as the general consumer has associated 4k+HDMI with HDMI 2.0 (regardless of the fact that HDMI 1.4 can actually do 4k).

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    As Expected on GTX 1060

    • Dylan Gideon,
    •  Ozark, MO 
    • 8/8/2016 8:18:49 AM

    Pros: Works

    Worked with no issue on a new GTX 1060 Have net tested with 4k

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