The extremely compact connector with a metal electromagnetic shielding layer, as an innovative Quad Ro board connection solution, ensures signal integrity and reduces electromagnetic and radio frequency interference
Built in shielding layer design eliminates the need for bulky external shielding components and complex grounding methods, optimizing space and design flexibility while simplifying assembly
Two sets of power pins increase the power transmission capacity by four times, enhancing the performance and running time of wearable and consumer devices
Lyle, Illinois - November 11, 2025- Molex, a global electronics industry leader and connectivity innovator, announced today the launch of the Molex Quad Ro shielded connector, which features a space saving Quad Ro signal pin layout and an electromagnetic interference resistant metal shielding layer. Compared to unshielded Quad Ro connectors, this shielded Quad Ro connector can reduce electromagnetic interference by up to 25dB, making it ideal for space constrained applications such as smartwatches and other wearable devices, mobile devices, AR/VR applications, laptops, gaming devices, and home appliances.
Molex Micro Connector Director Taekeon Park said, "Without shielding, connectors are susceptible to external electromagnetic noise from nearby components or far-field devices, leading to signal attenuation, data errors, and system failures, especially in high-speed or sensitive applications. In the past, designers needed to build additional external shielding devices or complex grounding schemes in the equipment to alleviate this problem, which increased the complexity, size, and cost of the equipment. This Quad Roll shielded connector has successfully broken through design and performance bottlenecks by improving reliability, optimizing signal integrity, and combining design flexibility with space utilization efficiency. "
Adopting an interleaved circuit layout with electromagnetic shielding to address electromagnetic interference challenges at 2.4-6 GHz and higher frequencies
Molex first released this groundbreaking and patented Quad Ro board to board connector in July 2020. This connector has become the industry standard for space saving, with a 30% reduction in design size compared to dual row connectors. This new Quad Ro shielded connector is built on a market validated Quad Ro layout, adding an electromagnetic shielding layer to reduce electromagnetic and RF interference as well as signal integrity issues that can cause unwanted noise. Compared to unshielded Quad Ro solutions, it can reduce electromagnetic interference by up to 25dB. For equipment designers who strive to ensure stable and error free signal performance in space constrained device designs, incorporating electromagnetic shielding layers into devices is a key value adding measure.
Establishing new standards for the next generation of consumer electronics products
Molex has long-term partnerships with product developers from major equipment and gaming manufacturers to support continuous improvement of equipment, including the development of new electromagnetic shielding technologies. Molex collaborated closely with its customer engineering team to address the two core challenges of signal interference and incremental power requirements, with a focus on exploring how to achieve up to 80 times the number of signal connections and 4 times the power transmission capacity compared to single connectors in the best possible way. The new Quad Ro shielding design adopts a power input/output layout that is compatible with power transmission mode, and a single set of board to board connectors can support signal transmission of up to 80 pins. In addition, in the 80 pin signal design, the S-parameter input specification can match the preferred pin layout scheme.
The highly innovative Quad Ro shielded connector significantly reduces electromagnetic interference and meets strict EMI/EMC standards, thereby reducing compliance testing burden and accelerating product approval. This shielding feature can also achieve error free communication, while seamlessly supporting operational and maintenance needs to extend the overall system running time.
Listing situation
Samples of Molex Quad Ro shielded connectors are now available to support customized inquiries, and commercial supply will follow up in the second quarter of 2026.
Molex Consumer and Commercial Solutions
Molex provides critical connections for the industry, a tradition that spans the entire consumer electronics ecosystem, with mature expertise in 5G, millimeter wave, RF, signal integrity, antennas, power supplies, cameras, and display technologies. Precision manufacturing, mass production, and miniaturization enable Molex to meet the dynamic global market demands, while providing leading equipment manufacturers and their suppliers with small-sized, high-density, and state-of-the-art connectors on the market.
