Premier Manufacturer
Romtronic provides custom DisplayPort cable solutions engineered for high-speed video, audio, and data transmission. When standard off-the-shelf DP cables can’t meet your mechanical, electrical, or performance requirements, our custom-built assemblies give you full control over structure, materials, and signal performance.
Our custom DisplayPort cables are widely used in monitors, industrial displays, embedded systems, video walls, medical equipment, and professional graphics solutions. From connector types and cable length to shielding, overmolding, and branding, every assembly is tailored to your application.
We support DP 1.2, 1.4/1.4a, and DP 2.0/2.1 designs, including high-resolution and high-refresh-rate solutions up to 8K.
Our Product Range
Our DisplayPort cable manufacturing process
Custom DisplayPort Cable Capabilities
Our engineering team designs DisplayPort cables around both signal integrity and real-world installation needs:
- Custom lengths, wire gauges, and jacket materials
- Standard DP, Mini DP, USB-C, DVI, and mixed-interface solutions
- Locking, right-angle, panel-mount, and overmolded connectors
- High-speed designs for 4K, 8K, and high-refresh-rate displays
- EMI shielding, strain relief, and industrial-grade durability
- Private labelling and custom packaging support
Each cable is electrically tested and mechanically inspected before shipment.
Engineering Assurance – Electrical Testing
Electrical testing is embedded into every Romtronic cable assembly program. From prototype to mass production, we apply structured electrical verification to ensure functional accuracy, electrical safety, and long-term reliability.
- 100% continuity and wiring validation
- Hi-pot and insulation resistance testing
- Resistance and voltage drop verification
- Custom functional electrical test development
🔗 Learn more about our Electrical Testing process
Advantages of our customized DisplayPort cables
- Accepting small-batch production orders at affordable prices.
- Providing customized high-end complex DisplayPort cable assemblies.
- Fast delivery: All processes, including soldering, over-moulding, and performance testing, are completed in-house, typically within 10-15 business days.
- Our extensive inventory includes cables, adapters, boosters, and couplers to meet all your DisplayPort connectivity needs.
You may want to know more about DP cables
DisplayPort interface form
The DisplayPort interface can support not only full HD (1920×1080) but also 4K (3840×2160) and the latest 8K (7680×4320). It has a high-speed transmission rate and is reliable and stable.
The signals transmitted by the DisplayPort interface consist of the data channel, which carries the image, and the auxiliary channel, which carries image-related status and control information. Specifically, these include the DisplayPort data transmission main channel (Main Link), auxiliary channel (AUX Channel), and connection (Link Training).
Overview of the Display Interface
Main Link: The main link is a unidirectional, high-bandwidth, low-latency channel for transmitting synchronous data streams, such as uncompressed video and audio.
The main link is a unidirectional, high-bandwidth, low-latency channel used to transmit synchronous data streams such as uncompressed video and audio.
The signal transmitted by the DisplayPort interface consists of a data channel for transmitting images and an auxiliary channel for transmitting image-related status and control information, specifically the DisplayPort data transmission main channel (Main Link), auxiliary channel (AUX Channel), and connection (link training).
Auxiliary Channel (AUX CH): A half-duplex, bidirectional channel used for link management and device control.
DisplayPort Cable Specifications
| Version number | Release Date | Transmission Speed (Gbit/s) | Bandwidth (Gbit/s) |
|---|---|---|---|
| DP 1.0 | 2006 | 8.64 Gbps | 10.80 Gbps |
| DP 1.1 | 2007 | 10.8 Gbps | 10.80 Gbps |
| DP 1.2 | 2009 | 21.6 Gbps | 21.60 Gbps |
| DP 1.3 | 2014 | 25.92 Gbps | 32.40 Gbps |
| DP 1.4 | 2016 | 25.92 Gbps | 32.40 Gbps |
| DP 1.4a | 2018 | 25.92 Gbps | 32.40 Gbps |
| DP 2.0 | 2019 | 77.37 Gbps | 80 Gbps |
| DP 2.1 | 2022 | 77.37 Gbps | 80 Gbps |
Advantages of DisplayPort
- The AUX channel in the DisplayPort connection enables bidirectional operation between terminal devices (such as Easync) and PCs (such as graphics cards), achieving plug-and-play.
- Supports G-SynciNvidia) and FreeSync (AMD) technologies, allowing the graphics card to communicate directly with the display without complex operations.
- DisplayPort connects the display to the computer digitally, supporting high transmission rates up to 240 Hz.
- DisplayPort requires fewer cables than analogue connections because only one cable transmits power and audio/video data.
- DisplayPort can connect multiple monitors. Other DisplayPort Channels can also be used for hardware such as cameras, touch screens, microphones, and USB connections.
- DisplayPort supports higher resolutions and refresh rates than VGA, DVI, or HDMI.
- DisplayPort transmits video and audio signals with more resolutions than any other connection type.
- DisplayPort transfers data faster than other standard interfaces, so you can send large files faster.
- With the latest version of DisplayPort, the transfer rate is up to 77.37 per second, supporting 8K video with 12-bit colour depth in every colour channel without any changes.
Frequently Asked Questions (FAQs)
Q1: What types of DisplayPort cables do you manufacture?
We offer standard and custom DisplayPort cables including DP 1.2, 1.4, and 2.1 versions, as well as DisplayPort to DVI, or VGA adapters. Custom lengths, shielding, and overmolding options are available upon request.
Q2: Can you produce DisplayPort cables that support 8K resolution and high refresh rates?
Yes. Our high-performance DisplayPort cables can support up to 8K@60Hz and 4K@144Hz, depending on your version and bandwidth requirements. We ensure signal integrity through advanced shielding and precise impedance control.
Q3: Do you offer locking connectors or right-angle DisplayPort designs?
Absolutely. We can provide cables with locking latches, right-angle connectors, or low-profile designs to fit tight installation spaces or enhance connection stability.
Q4: Are your DisplayPort cables RoHS and UL compliant?
Yes. All materials we use are RoHS compliant, and we can manufacture cables to meet UL, CE, and other international safety and quality standards upon request.
Q5: Can you customize branding or packaging for DisplayPort cables?
Yes, we offer private labeling, custom logos, and tailored packaging options to match your branding and product presentation needs.
Get in Touch for Custom DisplayPort Cable Solutions
Romtronic designs and manufactures custom DisplayPort cables for a wide range of applications, including displays, video walls, embedded systems, and industrial electronics. Our cables support various versions and connector types to meet your performance and compatibility requirements.
To request a quote, sample, or technical consultation, feel free to contact us through the form on this page or using the details below — our team will respond within 12 hours with personalized support.
📧 Email: info@romtronic.com
📞 Phone: (+86) 199-2816-5824
Romtronic delivers reliable, high-quality DisplayPort cable solutions trusted by customers around the world.