USB-C to HDMI vs DisplayPort: Which Cable Should You Buy?
By The Gear Audit Team | Research checked October 12, 2026
The quick buying answer
Choose the cable that matches your screen’s usable input and your computer’s documented video output. For an HDMI screen, consider the Plugable USBC-HDMI-CABLE. For a full-size DisplayPort screen, consider the Plugable USBC-DP. Both are manufacturer-rated for a single display at up to 3840 × 2160 at 60Hz with compatible equipment.
A USB-C socket alone does not establish video support. Check your exact computer and port before buying. These two six-foot cables fit a straightforward screen connection; choose other hardware if you need charging, USB peripherals or a higher verified display mode.
Start at the screen, then check the computer
The practical question is which complete connection will deliver the mode you want. Write down the screen’s exact model, available input, target resolution and refresh rate. Then find the computer’s specification for the particular USB-C port you will use. An HDMI or DisplayPort label does not answer every compatibility question.
Your monitor, television or projector has an available HDMI input that supports your target mode. For the HDMI cable here, Plugable requires a 4K/60-capable host and HDMI 2.0-capable display to achieve 4K/60.
Your monitor has a full-size DisplayPort input, and the documented connection supports your target mode. The USBC-DP is a direct option for this setup; its 4K/60 rating does not establish 4K/120 or 4K/144 support.
If both inputs meet your needs: There is no reason to replace a satisfactory connection solely to change port names. Consider which input you want to leave free for another device, whether six feet reaches comfortably and what you already own. We do not claim a picture-quality winner between these cables.
The two exact Plugable cables compared
| Buying detail | Plugable HDMI cable | Plugable DisplayPort cable |
|---|---|---|
| Exact model | USBC-HDMI-CABLE | USBC-DP, current bidirectional version |
| Typical connection here | USB-C computer → HDMI screen | USB-C computer → full-size DisplayPort screen |
| Published video specification | HDMI 2.0; up to 3840 × 2160 at 60Hz | DisplayPort 1.2; up to 3840 × 2160 at 60Hz |
| Length | 6ft / approximately 1.8m | 6ft / approximately 1.83m |
| Reverse connection | Do not use for HDMI source → USB-C screen | Current manufacturer page also supports DisplayPort source → compatible USB-C screen |
| Important limit | 4K/60 requires an appropriate host and HDMI 2.0-capable display | Reverse use cannot serve a portable screen that requires power and video together from its USB-C port |
Specifications: Plugable USBC-HDMI-CABLE and current USBC-DP. Maximum modes are conditional manufacturer ratings. The photos are illustrative, not a size comparison.
Plugable USBC-HDMI-CABLE: for an HDMI screen
Best for: A simple computer-to-HDMI screen connection where the documented mode is within this cable’s rating.
An integrated cable is convenient when your desk or meeting-room connection stays consistent. You do not need to pack a separate HDMI lead with a dongle. Plugable specifies driver-free operation on compatible hosts; the product relies on the computer’s video capabilities.
Pros
- Fits the HDMI job directly: A useful choice when that is the screen input you have available.
- One piece to carry: The attached six-foot lead simplifies a repeatable setup.
- Clear 4K/60 target: Appropriate for a compatible screen used within that published ceiling.
Cons
- Fixed reach: Choose an adapter with a separate lead if six feet does not suit the room or you need interchangeable lengths.
- Wrong direction for an HDMI computer: It will not turn an HDMI output into a USB-C display connection.
- Limited upgrade fit: Buy something else for a verified 4K mode above 60Hz or a full desk connection with charging and peripherals.
Our recommendation
Choose this exact cable when HDMI solves your screen connection and the length works. If your computer already has a suitable HDMI output, first consider using that with an appropriate existing HDMI cable. Spending on a USB-C converter makes most sense when it solves a port or placement problem.
Search Amazon for Plugable USBC-HDMI-CABLE
Search results may contain adapters and other models. Confirm USBC-HDMI-CABLE and the six-foot configuration.
Plugable USBC-DP: for a DisplayPort screen
Best for: A compatible USB-C computer connected to a monitor’s full-size DisplayPort input at a supported mode up to 4K/60.
This is the more useful of these two choices when you want to keep the HDMI input available for another source. The current USBC-DP also has a manufacturer-supported reverse-use option. That flexibility is specific to this model’s current listing; it is not a rule for every USB-C-to-DisplayPort cable.
Pros
- Uses the monitor’s DisplayPort input: Fits that connection without adding an HDMI conversion to the shopping list.
- Simple attached lead: A single six-foot cable suits a fixed desk when the reach is right.
- Current bidirectional option: Also worth considering for a DisplayPort source and a compatible, independently powered USB-C display.
Cons
- Cannot plug into HDMI or Mini DisplayPort: Check the actual monitor socket rather than buying by the word “DisplayPort.”
- 4K/60 is the documented ceiling: It is a poor shortlist match for a purchase whose goal is a higher 4K refresh rate.
- Reverse use has a power boundary: Plugable excludes portable monitors needing power and video from the same USB-C connection.
Our recommendation
Choose the current USBC-DP for a suitable DisplayPort monitor connection. For reverse use, confirm that the seller supplies the bidirectional version and that your exact USB-C screen meets the power and input requirements. If you already own an older cable with this model name, verify its documented direction before relying on the current page.
Search Amazon for Plugable USBC-DP
Confirm USBC-DP, six-foot length and bidirectional support if you need reverse operation. A matching exterior photo alone does not establish a retail revision.
Four checks that prevent the wrong purchase
- Verify video on the exact host port. Look for documented DisplayPort Alt Mode or an explicitly compatible Thunderbolt/USB4 connection. A charging or data specification alone is insufficient. Do not infer the display mode from a USB transfer-speed label.
- Check the selected screen input’s modes. Use its manual, including resolution and refresh rate for that input. Both cables’ ratings depend on compatible equipment; neither improves the computer’s native display limit.
- Check the route and direction. These are intended here as direct computer-to-screen connections. If you add a dock, KVM or other converter, verify that complete route separately.
- Decide whether you need more than video. For laptop charging, storage, Ethernet or multiple screens, compare a hub or dock and its exact host requirements. These two cables offer no charging input or peripheral sockets.
USB-C display cable FAQ
Will either cable work with every USB-C laptop?
No. The computer must support an appropriate video output on the port being used. Check the exact model’s documentation; the connector’s shape does not establish that capability.
Is DisplayPort always better than HDMI?
For the single-screen job covered here, choose the supported route that meets your required mode. Both selected cables have the same published 4K/60 ceiling. Their port names alone do not establish a visible improvement or gaming advantage.
Can I use them backwards?
The HDMI cable should not be used for HDMI source to USB-C screen. The current USBC-DP supports DisplayPort source to compatible USB-C screen, subject to its portable-monitor power caveat. Confirm the exact version rather than assuming reversibility from the plugs.
Why is my screen running at 30Hz?
Check the host’s supported mode, the chosen screen input and the system’s display settings. In Windows 11, open Display settings, choose Advanced display, select the external screen and inspect its resolution and refresh rate. Plugable’s refresh-rate guide also warns that some higher refresh selections can reduce resolution. Replacing the cable cannot fix an unsupported host or screen mode.
Can one of these cables add two external screens?
Each has one screen connector. A second screen requires a suitable additional connection and a computer that supports the intended display count. Do not treat a single cable as a splitter or assume a dock overrides the host’s native limits.
Related buying guides
- USB-C charging cable vs data cable — choose an ordinary USB-C cable for the features you need.
- How to choose a USB-C hub — match host, display and charging requirements when one cable is insufficient.
- USB-C and Thunderbolt monitor ports compared — understand an alternative monitor connection with hub features.
Research method, primary sources and limits
We checked the current Plugable US product pages and support guidance on October 12, 2026. Specifications and compatibility are manufacturer claims; our buying recommendations are editorial judgments. We did not conduct display, latency, image-quality, durability or gaming tests.
Primary sources: USBC-HDMI-CABLE specifications and 4K/60 conditions; current USBC-DP specifications, bidirectional operation and portable-monitor caveat; video conversion direction guidance; Windows 11 refresh-rate settings.
The advice covers one external screen and these exact six-foot models. We do not infer universal bandwidth, high-refresh performance, DSC, HDCP versions or protected-streaming compatibility. Manufacturer photos show the exact models on the current pages, but cannot identify an older cable’s internal revision. Amazon buttons are labelled searches, not verified offers; no static prices or numerical ratings are claimed. See our methodology.
Affiliate disclosure
As an Amazon Associate, The Gear Audit earns from qualifying purchases. We may earn an affiliate commission when you buy through our links, at no extra cost to you. Read our full affiliate disclosure.