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The HYSF DC4M is a protective standard 4-pin male dummy plug designed to seal and protect unused male connectors from contamination, seawater ingress, and corrosion in harsh offshore environments. Essential accessory for maintaining system integrity during storage, transport, or deployment of ROVs, subsea equipment, and marine installations. Made from durable materials with secure locking, it provides complete pressure-resistant sealing at deep ocean depths. HYSF offers reliable dummy plugs and protective accessories for standard underwater connectors from China.
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Cable Length (Standard): 1.0m (Inline) / 0.3m (Bulkhead)
Customization: Cable length, mounting threads, and electrical ratings available upon request.
✅ ROVs & AUVs: Thruster connections and tether management.
✅ Underwater Cameras: Video signal transmission.
✅ Sensors & Instrumentation: CTD, Sonar, and Hydrophones.
✅ Diving Equipment: Diver communication systems.
✅ Offshore Energy: Oil & Gas subsea control modules.
Chief Technical Officer
jason@hysfsubsea.com
Explore high-resolution photos of actual production units. These images highlight our precision machining, quality overmolding, and attention to detail in every connector we ship.
Looking for bulk pricing or specific cable lengths (e.g., 0.3m, 1m, or custom)? Fill out the form below, and our sales team will send you a formal quotation within 12 hours.
CEO
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