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The HYSF MCDC21M is a protective 21-pin male dummy connector used to seal and safeguard unused male ports from contamination and corrosion in harsh marine environments. Made from durable neoprene with secure locking mechanism, it maintains full pressure resistance up to 6000 meters (60 MPa). Essential accessory for preserving ultra-high-density connector integrity in ROV, AUV, and subsea equipment during storage or deployment.
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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.

Technischer Leiter
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.

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