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expiredphoinix | Staff posted Dec 22, 2022 11:10 AM
expiredphoinix | Staff posted Dec 22, 2022 11:10 AM

Amazon Basics DisplayPort to HDMI Adapter (4k@30Hz)

$2.60

$8.09

67% off
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Update: This popular deal is still available

Amazon has Amazon Basics DisplayPort to HDMI Adapter (4k@30Hz) for $2.61. Shipping is free w/ Amazon Prime or on orders $25+.

Thanks to community member phoinix for sharing this deal.

Note, HDMI cable required (not included)

Features:
  • Connects a computer with a DisplayPort to an HDMI-equipped HDTV, monitor, or projector for audio/video streaming
  • Supports video resolutions up to 4K@30Hz
  • Converts signal from DisplayPort to HDMI only (not bi-directional)
  • Ready to use, right out of the box; no external power adapter needed
  • DisplayPort is not compatible with a USB port; please ensure computer has a DisplayPort before purchasing this adapter

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available

Amazon has Amazon Basics DisplayPort to HDMI Adapter (4k@30Hz) for $2.61. Shipping is free w/ Amazon Prime or on orders $25+.

Thanks to community member phoinix for sharing this deal.

Note, HDMI cable required (not included)

Features:
  • Connects a computer with a DisplayPort to an HDMI-equipped HDTV, monitor, or projector for audio/video streaming
  • Supports video resolutions up to 4K@30Hz
  • Converts signal from DisplayPort to HDMI only (not bi-directional)
  • Ready to use, right out of the box; no external power adapter needed
  • DisplayPort is not compatible with a USB port; please ensure computer has a DisplayPort before purchasing this adapter

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by phoinix | Staff

Community Voting

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Model: Amazon Basics DisplayPort to HDMI Adapter (4k@30Hz)

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Top Comments

diversification
1291 Posts
278 Reputation
WARNING: This adapter is **Passive** which may not be a problem, but if you don't understand the difference between Active and Passive DisplayPort adapters, I would suggest that you check into it before buying to save yourself a potential headache if you happen to need an Active one.

EDIT: It's also uni-directional, meaning it only can send signal from the DisplayPort end through to the HDMI port end, and not the other way around. In other words of you buy this hoping to use it to connect your laptop which has HDMI to your monitor which has DisplayPort, it will not work because that's HDMI --> DP rather than DP --> HDMI.
Solandri
1319 Posts
1760 Reputation
4k@30Hz is HDMI 1.4b. It will be fine for 1080p up to 120Hz, 1440p up to 75Hz.

To do 4k@60Hz you need HDMI 2.0 or newer. Amazon is probably clearing out their stock of older HDMI 1.4b adapters.


No. A Displayport port (on your computer or video card) can support several features.

The higher-end versions support Displayport, HDMI, Ethernet (100Mbps on older versions, Gigabit on newer), and/or USB data. Basically you can use the port to plug in a hub (some Displayport monitors have these extra ports built-in); a much cheaper hub than Thunderbolt (PCIe over USB-C). You can use a passive adapter with these.
The most common version can output either Displayport or HDMI (or DVI, though I haven't seen that supported in a while). You can use a passive adapter with these. The adapter basically tells the port "I want an HDMI signal" and the computer or video card switches the Displayport port to outputting HDMI via the Displayport wires.
The basic version can only output Displayport. A passive adapter will not work with this as the port is incapable of outputting an HDMI signal. You will need an active adapter. An active adapter has circuitry which can convert Displayport into HDMI on the fly.

To quote the wiki: "The interface uses an LVDS signal protocol that is not compatible with DVI or HDMI. However, dual-mode DisplayPort ports are designed to transmit a single-link DVI or HDMI protocol (TMDS) across the interface through the use of an external passive adapter, enabling compatibility mode and converting the signal from 3.3 to 5 volts. For analog VGA/YPbPr and dual-link DVI, a powered active adapter is required for compatibility and does not rely on dual mode. Active VGA adapters are powered directly by the DisplayPort connector, while active dual-link DVI adapters typically rely on an external power source such as USB."

Unfortunately, a lot of computer manufacturers are not very forthcoming about whether the Displayport port on the computer supports just Displayport, or is dual-mode and supports HDMI (or DVI). So you end up having to search owner forums for your computer/laptop to find out. The video card manufacturers tend to be better about telling you, and will usually toss in a free adapter in the box if the card doesn't have a physical HDMI port (i.e. you may already have a passive Displayport to HDMI adapter in the bag of stuff left over from your video card install).

tl;dr - Some Displayport ports (actually most in my experience) can output HDMI instead of Displayport, and will work with a passive adapter. If you're unsure what type of port you have, get an active adapter just to be safe. Or you can take a gamble and try this since it's only $2.61.
rhyno2000
526 Posts
95 Reputation
30Hz? Is that still even a thing?

55 Comments

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Dec 22, 2022 01:08 PM
665 Posts
Joined Feb 2006
anthmDec 22, 2022 01:08 PM
665 Posts
Got 2, thanks OP
2
Dec 22, 2022 01:27 PM
48 Posts
Joined Dec 2013
jitsterDec 22, 2022 01:27 PM
48 Posts
same, got 2, thanks, OP!
2
Dec 22, 2022 01:37 PM
526 Posts
Joined Jan 2007
rhyno2000Dec 22, 2022 01:37 PM
526 Posts
30Hz? Is that still even a thing?
1
5
Dec 22, 2022 01:44 PM
1,291 Posts
Joined Nov 2012
diversificationDec 22, 2022 01:44 PM
1,291 Posts

Our community has rated this post as helpful. If you agree, why not thank diversification

WARNING: This adapter is **Passive** which may not be a problem, but if you don't understand the difference between Active and Passive DisplayPort adapters, I would suggest that you check into it before buying to save yourself a potential headache if you happen to need an Active one.

EDIT: It's also uni-directional, meaning it only can send signal from the DisplayPort end through to the HDMI port end, and not the other way around. In other words of you buy this hoping to use it to connect your laptop which has HDMI to your monitor which has DisplayPort, it will not work because that's HDMI --> DP rather than DP --> HDMI.
Last edited by diversification December 22, 2022 at 06:49 AM.
18
Dec 22, 2022 01:53 PM
1,297 Posts
Joined Dec 2007
mrbearDec 22, 2022 01:53 PM
1,297 Posts
Quote from diversification :
WARNING: This adapter is **Passive** which may not be a problem, but if you don't understand the difference between Active and Passive DisplayPort adapters, I would suggest that you check into it before buying to save yourself a potential headache if you happen to need an Active one.

EDIT: It's also uni-directional, meaning it only can send signal from the DisplayPort end through to the HDMI port end, and not the other way around. In other words of you buy this hoping to use it to connect your laptop which has HDMI to your monitor which has DisplayPort, it will not work because that's HDMI --> DP rather than DP --> HDMI.
If I'm researching correctly, active allows creating a second output to screen as a separate display even when your laptop/computer does not support it (like a dual screen docking station)? Passive just sends the display, so if computer only supports 1 output display, that is what it will show (will not do multiple separate screens).
1
2
Dec 22, 2022 01:54 PM
4,201 Posts
Joined Jul 2012
desynergyDec 22, 2022 01:54 PM
4,201 Posts
Quote from diversification :
WARNING: This adapter is **Passive** which may not be a problem, but if you don't understand the difference between Active and Passive DisplayPort adapters, I would suggest that you check into it before buying to save yourself a potential headache if you happen to need an Active one.

EDIT: It's also uni-directional, meaning it only can send signal from the DisplayPort end through to the HDMI port end, and not the other way around. In other words of you buy this hoping to use it to connect your laptop which has HDMI to your monitor which has DisplayPort, it will not work because that's HDMI --> DP rather than DP --> HDMI.
Good heads up. I made that mistake once (directional).
Dec 22, 2022 02:51 PM
21,667 Posts
Joined Nov 2007
Buckeyefan 1Dec 22, 2022 02:51 PM
21,667 Posts
Fine for one direction 1080p displays. Skip for everything else.

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Dec 22, 2022 03:02 PM
1,669 Posts
Joined Aug 2009
dcguy703Dec 22, 2022 03:02 PM
1,669 Posts
looking for a similar deal for usb c to hdmi
1
Dec 22, 2022 03:13 PM
1,291 Posts
Joined Nov 2012
diversificationDec 22, 2022 03:13 PM
1,291 Posts
Quote from mrbear :
If I'm researching correctly, active allows creating a second output to screen as a separate display even when your laptop/computer does not support it (like a dual screen docking station)? Passive just sends the display, so if computer only supports 1 output display, that is what it will show (will not do multiple separate screens).
I believe there's more to it than the dual monitor matter. I'd Google "do I need an active DisplayPort adapter" or something like that to find an article that will more directly address whether this item is a good fit for you.
Dec 22, 2022 03:23 PM
670 Posts
Joined Mar 2010
KTmADec 22, 2022 03:23 PM
670 Posts
Quote from rhyno2000 :
30Hz? Is that still even a thing?
I'm using a 60Hz DP to HDMI cable, but 30Hz is fine for a work laptop. My dock only has DP output, so I wouldn't be bothered by a limit of 30Hz if I'm just getting some work done.
4
Dec 22, 2022 03:51 PM
284 Posts
Joined Dec 2018
DavidP6348Dec 22, 2022 03:51 PM
284 Posts
Quote from KTmA :
I'm using a 60Hz DP to HDMI cable, but 30Hz is fine for a work laptop. My dock only has DP output, so I wouldn't be bothered by a limit of 30Hz if I'm just getting some work done.
Do you normally work under water? 30hz should be illegal.
11
Dec 22, 2022 05:02 PM
436 Posts
Joined Feb 2010
greendesertDec 22, 2022 05:02 PM
436 Posts
I have a hdmi splitter which has toslink output and I need this feature badly.
But, recently I have upgraded to uhd monitor and that splitter only supports 30hz.
When I scroll webpages, its a pain to watch the screen.

So, now I have to spend more money to get a 60hz splitter.
This is my experience and buys take cue.
1
Dec 22, 2022 05:24 PM
174 Posts
Joined Oct 2011
veeceekayveeDec 22, 2022 05:24 PM
174 Posts
Dang! bought from bestbuy for $9 yesterday. time for another trip to bestbuy to return it.
2
Dec 22, 2022 05:33 PM
131 Posts
Joined Nov 2020
Ali.SolimanDec 22, 2022 05:33 PM
131 Posts
30hz 4K, stay away.
2

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Dec 22, 2022 05:37 PM
1,319 Posts
Joined Oct 2010
SolandriDec 22, 2022 05:37 PM
1,319 Posts

Our community has rated this post as helpful. If you agree, why not thank Solandri

Quote from rhyno2000 :
30Hz? Is that still even a thing?
4k@30Hz is HDMI 1.4b. It will be fine for 1080p up to 120Hz, 1440p up to 75Hz.

To do 4k@60Hz you need HDMI 2.0 or newer. Amazon is probably clearing out their stock of older HDMI 1.4b adapters.

Quote from mrbear :
If I'm researching correctly, active allows creating a second output to screen as a separate display even when your laptop/computer does not support it (like a dual screen docking station)? Passive just sends the display, so if computer only supports 1 output display, that is what it will show (will not do multiple separate screens).
No. A Displayport port (on your computer or video card) can support several features.
  • The higher-end versions support Displayport, HDMI, Ethernet (100Mbps on older versions, Gigabit on newer), and/or USB data. Basically you can use the port to plug in a hub (some Displayport monitors have these extra ports built-in); a much cheaper hub than Thunderbolt (PCIe over USB-C). You can use a passive adapter with these.
  • The most common version can output either Displayport or HDMI (or DVI, though I haven't seen that supported in a while). You can use a passive adapter with these. The adapter basically tells the port "I want an HDMI signal" and the computer or video card switches the Displayport port to outputting HDMI via the Displayport wires.
  • The basic version can only output Displayport. A passive adapter will not work with this as the port is incapable of outputting an HDMI signal. You will need an active adapter. An active adapter has circuitry which can convert Displayport into HDMI on the fly.
To quote the wiki: "The interface uses an LVDS signal protocol that is not compatible with DVI or HDMI. However, dual-mode DisplayPort ports are designed to transmit a single-link DVI or HDMI protocol (TMDS) across the interface through the use of an external passive adapter, enabling compatibility mode and converting the signal from 3.3 to 5 volts. For analog VGA/YPbPr and dual-link DVI, a powered active adapter is required for compatibility and does not rely on dual mode. Active VGA adapters are powered directly by the DisplayPort connector, while active dual-link DVI adapters typically rely on an external power source such as USB."

Unfortunately, a lot of computer manufacturers are not very forthcoming about whether the Displayport port on the computer supports just Displayport, or is dual-mode and supports HDMI (or DVI). So you end up having to search owner forums for your computer/laptop to find out. The video card manufacturers tend to be better about telling you, and will usually toss in a free adapter in the box if the card doesn't have a physical HDMI port (i.e. you may already have a passive Displayport to HDMI adapter in the bag of stuff left over from your video card install).

tl;dr - Some Displayport ports (actually most in my experience) can output HDMI instead of Displayport, and will work with a passive adapter. If you're unsure what type of port you have, get an active adapter just to be safe. Or you can take a gamble and try this since it's only $2.61.
Last edited by Solandri December 22, 2022 at 10:50 AM.
5

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