What is the Difference Between DP and DP++?
If you're a display enthusiast, you're probably already familiar with popular connectors like HDMI, DisplayPort (DP), DVI, and VGA. But even seasoned tech fans might not know about a feature called Dual-Mode DisplayPort, or DP++. Curious about what sets it apart from the standard DisplayPort? Stick around! In this blog post, we’ll dive into how DP++ works, what makes it unique, and why it could matter for your setup.
What is a DisplayPort?
DisplayPort (DP) is a digital display interface designed for connecting computers to monitors, TVs, or projectors. Like HDMI, it transmits both high-definition video and audio through a single cable. However, DisplayPort is often favored by gamers, creators, and professionals for its support of higher resolutions, faster refresh rates, and streamlined multi-monitor setups.
Like many technologies, DisplayPort comes in different versions to meet various needs: Standard DisplayPort (DP) and Dual-Mode DisplayPort (DP++).
What is DP++?
Dual-Mode DisplayPort or DP++, functions similarly to a standard DisplayPort (DP) but stands out for its ability to support multiple display types. This compatibility difference makes DP++ especially versatile.
DP vs DP++
DisplayPort (DP) and Dual-Mode DisplayPort (DP++) might look identical at a glance—they both use the same 20-pin connector shape, so you won’t spot any physical differences. However, their primary difference lies in signal compatibility:
- Standard DP Port: Only supports native DisplayPort signals, so it’s ideal for connecting directly to a DisplayPort monitor.
- Dual-Mode DP (DP++) Port: Can convert DisplayPort signals to HDMI or DVI, using a passive adapter to connect seamlessly with HDMI or DVI displays.
In simpler terms, if both your computer and monitor have DP, a standard DP-to-DP cable will work perfectly. But if your monitor only has an HDMI or DVI port, you’ll need an active adapter to convert the signal with a standard DP port. With DP++, however, a passive DP-to-HDMI or DP-to-DVI cable will do the job—no active adapter required!
Which is better in industrial settings? DP or DP++
In industrial settings where connection consistency, electromagnetic interference (EMI) resilience, and compatibility with specialized displays are critical, standard DisplayPort (DP) is often preferred over Dual-Mode DisplayPort (DP++). Although DP++ offers flexibility with HDMI and DVI support, standard DP is purpose-built for environments demanding reliable, uninterrupted connections.
- Stronger Signal Integrity: Standard DP sends a pure DisplayPort signal, without extra HDMI or DVI layers, which helps reduce interference issues—especially in high-EMI environments. This makes it more reliable in challenging conditions.
- Better Compatibility with Industrial Displays: Industrial monitors are usually designed for native DP signals, delivering better performance and supporting longer cable runs with standard DP. This ensures stable performance, even with multi-monitor setups.
- Limited Need for HDMI/DVI Compatibility: Industrial applications rarely require HDMI or DVI, as DisplayPort is the standard for specialized equipment. Focusing purely on DP signals boosts reliability and uptime—essential in demanding workflows.
In summary, while DP++ provides flexibility, standard DP’s dedicated design aligns more closely with the stability, EMI resilience, and compatibility requirements of industrial settings, making it the preferred choice for critical applications.
C&T's Industrial Computers With DP and DP++
C&T’s industrial computers come equipped with both DisplayPort (DP) and Dual-Mode DisplayPort (DP++) options, providing flexibility and high-performance display capabilities tailored for industrial needs.
Contact us to consult with our technical experts.
FAQ
- What is DisplayPort (DP)?
DisplayPort (DP) is a digital display interface designed for connecting computers to monitors, TVs, or projectors. It supports high-resolution video, multi-channel audio, and is commonly used in professional and gaming setups.
- What is Dual-Mode DisplayPort (DP++)?
Dual-Mode DisplayPort (DP++) is a version of DisplayPort that can also output HDMI or DVI signals. This makes it easy to connect to HDMI and DVI displays without an active adapter—just a passive DP-to-HDMI or DP-to-DVI cable is all you need.
- What’s the difference between DP and DP++?
Standard DP only supports DisplayPort signals and requires an active adapter to connect to HDMI or DVI. In contrast, DP++ can convert DP signals to HDMI or DVI with just a passive cable, making it more versatile for different types of displays.
- What is HDMI?
HDMI (High-Definition Multimedia Interface) is a digital display interface used widely in consumer electronics for transmitting high-definition video and audio over a single cable. It’s common in TVs, monitors, and home entertainment systems.
- DisplayPort vs HDMI resolution
Feature DisplayPort (DP) HDMI Typical Use Professional and gaming setups TVs, monitors, home entertainment Multi-Monitor Support Supports daisy-chaining multiple displays Not supported Resolution & Refresh Rates DP 1.4: Up to 8K @ 60Hz HDMI 2.0: Up to 4K @ 60Hz DP 2.0: Up to 16K @ 60Hz HDMI 2.1: Up to 8K @ 60Hz Audio Support Yes Yes Cable Length Up to 3 meters (standard); can extend further with active cables Up to 10 meters for 1080p; shorter for higher resolutions Compatibility Common in professional and high-end monitors Widely compatible with consumer electronics
