Monoprice DisplayPort 1.2a to 4K HDMI Active Adapter, Black
Product # 12781
UPC # 889028007990
$9.99
*Affirm is not available for business or international orders
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$7.99
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$7.99
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Browse 17 questions
Browse 17 questions
and 24 answers
I have a monitor with displayport and devices that can output HDMI. Will this work?
Simon Y
on Jan 19, 2017
BEST ANSWER: No - this works to go between a device with DisplayPort and a monitor with HDMI (so opposite of what you wrote).
- Reply
- Inaccurate
- Robert D on Jan 19, 2017
- Purchased on May 10, 2016
BEST ANSWER: No - this works to go between a device with DisplayPort and a monitor with HDMI (so opposite of what you wrote).
- Reply
- Inaccurate
- Robert D on Jan 19, 2017
- Purchased on May 10, 2016
Unless it is a bi-directional, this is a DisplayPort to HDMI only. It is not a bidirectional type.
- Reply
- Inaccurate
- Lee Y on Aug 20, 2023
- Purchased on Jan 19, 2021
I have mine plugged into my display port on my Graphics card to HDMI Monitor and it works great!
- Reply
- Inaccurate
- Jonathan P on Mar 10, 2017
- Purchased on Feb 16, 2017
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i have hdmi on my laptop and display 1.2 on my lenovo desktop, i would like to mirror from the laptop to the desk top. will this adapter work?
A shopper
on May 31, 2019
BEST ANSWER: When you say that your desktop has DisplayPort, is that an input or an output? A typical desktop computer does not have video inputs (the required circuitry is expensive and most users don’t need a video input).
Connecting the video OUTput of your laptop to the video OUTput of your desktop won’t work... and HDMI vs. DisplayPort is not the biggest part of the problem.
BUT, perhaps you mean to connect your laptop to your desktop MONITOR? In that case, this adapter still won’t work. It’s the opposite of the adapter you need. This is a DisplayPort-to-HDMI adapter. It allows the output of a DisplayPort source to be connected to an HDMI input such as on a TV or monitor. You want to take HDMI output to a DisplayPort input. Adapters for this are available.
The important thing to know here is that any adaption between HDMI and DisplayPort is necessarily directional.
Connecting the video OUTput of your laptop to the video OUTput of your desktop won’t work... and HDMI vs. DisplayPort is not the biggest part of the problem.
BUT, perhaps you mean to connect your laptop to your desktop MONITOR? In that case, this adapter still won’t work. It’s the opposite of the adapter you need. This is a DisplayPort-to-HDMI adapter. It allows the output of a DisplayPort source to be connected to an HDMI input such as on a TV or monitor. You want to take HDMI output to a DisplayPort input. Adapters for this are available.
The important thing to know here is that any adaption between HDMI and DisplayPort is necessarily directional.
- Reply
- Inaccurate
- Chuck Gollnick G on May 31, 2019
- Purchased on Jul 3, 2018
BEST ANSWER: When you say that your desktop has DisplayPort, is that an input or an output? A typical desktop computer does not have video inputs (the required circuitry is expensive and most users don’t need a video input).
Connecting the video OUTput of your laptop to the video OUTput of your desktop won’t work... and HDMI vs. DisplayPort is not the biggest part of the problem.
BUT, perhaps you mean to connect your laptop to your desktop MONITOR? In that case, this adapter still won’t work. It’s the opposite of the adapter you need. This is a DisplayPort-to-HDMI adapter. It allows the output of a DisplayPort source to be connected to an HDMI input such as on a TV or monitor. You want to take HDMI output to a DisplayPort input. Adapters for this are available.
The important thing to know here is that any adaption between HDMI and DisplayPort is necessarily directional.
Connecting the video OUTput of your laptop to the video OUTput of your desktop won’t work... and HDMI vs. DisplayPort is not the biggest part of the problem.
BUT, perhaps you mean to connect your laptop to your desktop MONITOR? In that case, this adapter still won’t work. It’s the opposite of the adapter you need. This is a DisplayPort-to-HDMI adapter. It allows the output of a DisplayPort source to be connected to an HDMI input such as on a TV or monitor. You want to take HDMI output to a DisplayPort input. Adapters for this are available.
The important thing to know here is that any adaption between HDMI and DisplayPort is necessarily directional.
- Reply
- Inaccurate
- Chuck Gollnick G on May 31, 2019
- Purchased on Jul 3, 2018
I use the adapter to connect my HP laptop (DisplayPort) to HDMI projectors and TV's for presentations. It has always worked.
- Reply
- Inaccurate
- Mark H on May 31, 2019
- Purchased on Jun 14, 2018
No. It will only work if your computer has DisplayPort and the monitor/tv has HDMI.
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- Inaccurate
- B R on Jun 1, 2019
- Purchased on Jul 5, 2018
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I need to convert an Nvidia card output that does 4K at 60HZ. Has anyone tried that?
A shopper
on Apr 3, 2017
BEST ANSWER: It should, but it is dependent on particular setups and devices. I have used them with 4K TVs in the past though.
- Reply
- Inaccurate
- Timothy J on Jan 14, 2018
- Purchased on Jan 18, 2017
BEST ANSWER: It should, but it is dependent on particular setups and devices. I have used them with 4K TVs in the past though.
- Reply
- Inaccurate
- Timothy J on Jan 14, 2018
- Purchased on Jan 18, 2017
Its supposed to, but I was unable to get 4k60 to work with my 970 and Sony tv
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- Inaccurate
- Joshua L on Apr 3, 2017
- Purchased on May 3, 2016
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From what I'm seeing, my computer should be DisplayPort 1.2, not 1.2a. Should this adapter work for me?
Edward C
on Feb 7, 2019
BEST ANSWER: I’m not sure if this will help but I bought cables from Best Buy to make sure everything worked, bought the same but better quality cables from Monoprice and then returned the Best Buy cables. 100% refund but it would tell you if similar cables are compatible before ordering anything online.
- Reply
- Inaccurate
- Mark on Feb 7, 2019
- Purchased on Feb 19, 2018
BEST ANSWER: I’m not sure if this will help but I bought cables from Best Buy to make sure everything worked, bought the same but better quality cables from Monoprice and then returned the Best Buy cables. 100% refund but it would tell you if similar cables are compatible before ordering anything online.
- Reply
- Inaccurate
- Mark on Feb 7, 2019
- Purchased on Feb 19, 2018
Yes this should work. The 1.2a standard should be backwards compatible with 1.2
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- Jonathan B on Feb 7, 2019
- Purchased on Mar 20, 2018
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Which one of these can be use to support audio between my Sony TV 1080p (HDMI) and my desktop (Displayport)?
A shopper
on Mar 5, 2019
Monoprice DisplayPort 1.2a to 4K HDMI Active Adapter, Black
Monoprice DisplayPort 1.1 to HDTV Cable, 6ft
Monoprice DisplayPort 1.2a to 4K@60Hz HDMI Active UHD Adapter, Black
Monoprice DisplayPort 1.2a to 4K@60Hz HDMI Active HDR Adapter, Black
BEST ANSWER: Thank you for your question.
Any of these would pass audio.
Any of these would pass audio.
- Reply
- Inaccurate
- Tyler C Staff on Aug 27, 2019
BEST ANSWER: Thank you for your question.
Any of these would pass audio.
Any of these would pass audio.
- Reply
- Inaccurate
- Tyler C Staff on Aug 27, 2019
DisplayPort does not pass audio.. I just verified this at the time of writing this response.
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- Inaccurate
- John S on Mar 18, 2020
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Does this adapter support the transmission of audio signals?
A shopper
on Mar 9, 2017
BEST ANSWER: The DisplayPort 1.2a to 4K HDMI Active Adapter does support the transmission of audio signals.
- Reply
- Inaccurate
- MATTHEW K Staff on May 18, 2017
BEST ANSWER: The DisplayPort 1.2a to 4K HDMI Active Adapter does support the transmission of audio signals.
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- MATTHEW K Staff on May 18, 2017
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Will the cable support 1440p (2560x1440) at 60Hz? I know it supports 4k @30Hz so I'm curious.
A shopper
on Jan 3, 2018
BEST ANSWER: Yes, I bought it and it does support 1440p at 60 Hz.
- Reply
- Inaccurate
- Graeme S on Sep 10, 2019
BEST ANSWER: Yes, I bought it and it does support 1440p at 60 Hz.
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- Inaccurate
- Graeme S on Sep 10, 2019
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Would it support hdr?
A shopper
on Mar 10, 2019
BEST ANSWER: Thank you for your question.
This would not but #33125 would.
This would not but #33125 would.
- Reply
- Inaccurate
- Tyler C Staff on Aug 27, 2019
BEST ANSWER: Thank you for your question.
This would not but #33125 would.
This would not but #33125 would.
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- Inaccurate
- Tyler C Staff on Aug 27, 2019
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Do you carry this in the store?
Ho L
on Mar 18, 2019
BEST ANSWER: Thank you for your question.
This item us carried at the store.
This item us carried at the store.
- Reply
- Inaccurate
- Tyler C Staff on Aug 28, 2019
BEST ANSWER: Thank you for your question.
This item us carried at the store.
This item us carried at the store.
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- Inaccurate
- Tyler C Staff on Aug 28, 2019
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I have a freesync capable monitor, can I use freesync over HDMI with this cable?
A shopper
on Apr 20, 2019
BEST ANSWER: Should work. Depending on the frame rate you're trying to achieve at 4K, I would be more concerned about having an adequate HDMI cable. HDMI 2.0 up should suffice.
- Reply
- Inaccurate
- Roe M on Apr 23, 2019
- Purchased on Jun 30, 2018
BEST ANSWER: Should work. Depending on the frame rate you're trying to achieve at 4K, I would be more concerned about having an adequate HDMI cable. HDMI 2.0 up should suffice.
- Reply
- Inaccurate
- Roe M on Apr 23, 2019
- Purchased on Jun 30, 2018
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Each of my two computers support one HDMI output, and one DVI output. My two monitors only support VGA or DVI. Can i use the HDMI active adapter (#12781), and the DVI active adapter (#12784), and use this device as a KVM switch between my two computers and monitors?
A shopper
on Mar 16, 2020
Monoprice DisplayPort 1.2a to 4K HDMI Active Adapter, Black
Monoprice 4K 2-Port DisplayPort 1.2a and USB 2.0 KVM Switch
Monoprice DisplayPort 1.2a to DVI Active Adapter, Black
BEST ANSWER: Thank you for your question.
Our KVMs are not made to work with converters or adapters so we cannot guarantee this would work in that setup.
Our KVMs are not made to work with converters or adapters so we cannot guarantee this would work in that setup.
- Reply
- Inaccurate
- Tyler C Staff on Mar 17, 2020
BEST ANSWER: Thank you for your question.
Our KVMs are not made to work with converters or adapters so we cannot guarantee this would work in that setup.
Our KVMs are not made to work with converters or adapters so we cannot guarantee this would work in that setup.
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- Inaccurate
- Tyler C Staff on Mar 17, 2020
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what is the mini display port used for compared to a display port? Is display port for desktop computer and mini display port for laptop? I need converter for my monitor with hdmi connector to my desktop computer with display port connector.
A shopper
on Mar 20, 2020
BEST ANSWER: No. Mini Display Port is used on a variety of hardware. You need to check which one your hardware uses to know which one you need. Mini is square while Full Size is oblong like in this picture.
- Reply(1)
- Inaccurate
- Don F on Mar 20, 2020
- Purchased on Apr 4, 2019
BEST ANSWER: No. Mini Display Port is used on a variety of hardware. You need to check which one your hardware uses to know which one you need. Mini is square while Full Size is oblong like in this picture.
- Reply(1)
- Inaccurate
- Don F on Mar 20, 2020
- Purchased on Apr 4, 2019
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What is the operating temperature of these adapters?
A shopper
on Jan 24, 2023
BEST ANSWER: Hello,
Thank you for your inquiry. The operating temperature is 0C~45C.
Thank you for your inquiry. The operating temperature is 0C~45C.
- Reply
- Inaccurate
- Coty R Staff on Jun 28, 2023
BEST ANSWER: Hello,
Thank you for your inquiry. The operating temperature is 0C~45C.
Thank you for your inquiry. The operating temperature is 0C~45C.
- Reply
- Inaccurate
- Coty R Staff on Jun 28, 2023
Vote for the best answer above!
I'm dealing with an annoying monitor to dock conversion issue, and I'm hoping this is the correct answer to it. I have two 1080p 75hz monitors with hdmi output ports. My dock only has USB C and DisplayPort inputs. Could I use this to plug into the hdmi port on the monitor and then use a DisplayPort cable from this to the dock?
New User U
on Dec 10, 2021
What is the operating temperature range of this product? The product # is 12781
A shopper
on Jul 13, 2022
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Rated 5 out of 5
Great buy always a great buy. Will return again and again.
Great cable nice sturdy build and made very well. I'm running much more than just this graphics card on my PC. It's becoming a monster overnight lol
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Rated 1 out of 5
Arrived on time, doesn't work for an HDMI output on a Ubuntu linux laptop to a display port monitor.
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Rated 5 out of 5
This was just what I needed to make my BIOS display properly on my Acer monitor.
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Rated 5 out of 5
Works as expected
Handy product, just plug and play.
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Rated 5 out of 5
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Rated 5 out of 5
It?s great.
Not much to it but it works perfectly!
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Rated 4 out of 5
It works great. I wish it had worked the first time I connected it, but that could be my setup, and not a limitation of the adapter.
I have mine connected to my video card (EVGA RTX 2080 Super). It is then connected by HDMI to my Denon AVR-X6300H, which is connected to my 2014 Samsung 4K TV UN60HU8550 (8 bit non HDR). I purchased this adapter because the Insignia adapter I purchased at Best Buy started giving me a ?No Signal? message when I would switch my AV Receiver to the PC input. I first purchased a Cable Matters adapter from Amazon first that actually costs more than this one. Not long after I started using the CM adapter, I started experiencing sporadic picture loss. I?m still not sure if this was the adapter or a temporary issue with my PC. That is the main reason I purchased this one. I was disappointed when I first connected the Monoprice adapter, because I got a ?No Signal? message. I unplugged and replugged the HDMI and DP adapter several times (which would usually remedy the Insignia adapter), but it did nothing. I reconnected the CM adapter and got a picture, and then swapped it out for the Monoprice adapter. It worked. The Monoprice adapter has been working for over 24 hours with several reboots and turning the receiver and TV off and back on. II hope this continues to work for me. In case anyone is curious... The reason I am using the adapter is because I have to connect my Oculus Rift to the HDMI port of my video card, and need video to the monitor (TV) at the same time. I will say that putting a receiver between the PC and monitor with an adapter for HDMI is a tricky endeavor at best. I am a cable technician and run into HDMI issues on customer?s TVs regularly. I just want to say that I am not at all surprised that I have had difficulty getting this to work. It is working though, and that?s the point.
Added Mar 27, 2021
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Rated 5 out of 5
Use it to run a Viotek display for trading.Does a great job
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Rated 5 out of 5
Works as intended
Used these cables to adapt projector cable (HDMI) to PC (DP) and they work as described..
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Rated 5 out of 5
A good value adapter.
This adapts well. Not sure what else to say other than its a good price for a good adapter.
Stay safe, wear a mask, etc.
Stay safe, wear a mask, etc.
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