Founded in 2018, MarineConn Technology Co., Ltd. is a premier manufacturer and innovator specializing in subsea electronic components. We focus on the R&D, engineering, and manufacturing of watertight connectors, underwater sensing technologies, and advanced sealing protection systems. Our mission is to deliver mission-critical, highly dependable solutions for marine exploration, offshore development, and underwater robotics. Backed by a comprehensive facility integrating state-of-the-art production workshops, precision testing laboratories, and an expert R&D center, MarineConn ensures seamless project execution from concept to deployment. We excel in providing OEM/ODM customized services, engineering tailored products that meet the exact specifications of our clients operating in harsh marine environments.
Equipped with dedicated R&D, engineering, sales and after-sales teams, we ensure all projects run steadily and efficiently.We operate well-equipped production workshops and laboratories, and offer full customization services to meet diverse client requirements.
Yes, MarineConn offers full OEM and ODM services for subsea connectors, underwater equipment and marine electronics. We can customize products with your logo, specific dimensions, pressure ratings and interface configurations. Our engineering team supports rapid prototyping through to mass production.
You can contact us by email, online chat, or whatsApp and wechat. When we receive your inquiry, our sales to follow up your case and reply to you within 6 hours. Specifications and catalogs can be downloaded from our website Download. Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information.
Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website. For standard underwater connectors (in stock models: RMG/RMK, 55 Series, Power, Low Profile, Metal Shell, 13PIN Ethernet, etc.), Usually our MOQ is 500 meters. However, we accept trial orders as low as 100 meters for customer testing. For standard in-stock cables, we can supply just 1 meter.We also support small trial orders for new customers.
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.
A Certain Project of the First Academy of China Aerospace Science and Technology Corporation
Breaking through technological bottlenecks, meeting real-world operational needs, and achieving domestic substitution
China Aerospace have established a joint R&D team, fully integrating the strengths and resources of both parties, focusing on the project’s key challenges, and systematically advancing the independent development
Northwestern Polytechnical University ranks among the nation’s leading institutions in research across aerospace, marine engineering, and other fields. Its “Deep-Sea Intelligent Vehicle Navigation and Observation System” project aims to overcome core technological bottlenecks in deep-sea intelligent equipment, placing stringent demands on the miniaturization, high precision, and low power consumption of supporting electronic devices. Leveraging its innovative capabilities in products such as underwater cameras and underwater lighting, MarineConn has become a key supplier for this project.
The products provided by MarineConn Technology effectively meet the lightweight and high-precision requirements of deep-sea autonomous vehicles, significantly enhancing the stability of navigation and observation systems as well as data accuracy, thereby accelerating the project’s R&D progress.
Building on this successful collaboration, the two parties have established a joint industry–university–research laboratory and will continue to cooperate in areas such as technological innovation and the commercialization of results for underwater intelligent electronic devices, achieving complementary resource utilization and mutual benefit between academia and industry.
Its research cruise aboard the ocean drilling vessel “Dream” was selected as one of the “2026 Science Events to Watch” by the world‑leading academic journal Nature, drawing significant attention from the international scientific community.
The deep-towed cable and underwater optoelectronic plug-in modules manufactured by the company are essential components of deep-sea exploration operations, playing a pivotal role in data transmission, equipment power supply, and deep-sea communication.
Looking ahead, the two parties are expected to engage in even deeper cooperation in the field of deep-sea exploration equipment, jointly contributing to China’s marine geological survey efforts.
