About HYSF

Your trusted partner in subsea connectivity. Manufacturing excellence & ISO certified quality.

Frequently asked questions about our manufacturing capabilities, certifications, and company history.

What makes HYSF a reliable SubConn alternative?

For engineers and procurement managers seeking a reliable alternative to SubConn®, HYSF offers several key advantages without compromising on technical integrity:

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Can HYSF connectors operate at 6,000 meters depth?

Deep-sea capability is our benchmark.

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Does HYSF offer diving equipment?

Beyond unmanned vehicles (ROVs), we support human-occupied missions.

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What is HYSF’s experience with the Chinese Academy of Sciences (CAS)?

Working with CAS is a testament to our technical capability.

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What is HYSF’s “Import Substitution” strategy?

Many subsea projects are constrained by the high cost and long lead times of imported brands.

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Is HYSF recognized as a “Specialized Small & Micro Enterprise”?

This accreditation is significant for niche technology manufacturers.

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Does HYSF manufacture subsea cameras and lights?

HYSF provides complete subsea vision solutions.

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What is the specific reliability rate of HYSF products?

Reliability is the most critical metric for subsea equipment, where maintenance is difficult and costly.

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Does HYSF possess its own Intellectual Property (IP)?

In the high-tech subsea sector, IP is a sign of genuine innovation. HYSF does not rely on copying; we develop our own solutions.

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Ready to verify our manufacturing capabilities?

Download our full Company Presentation or schedule a virtual factory tour today.

Proven Solutions in the Field

A showcase of our successful collaborations with global marine robotics, energy, and research partners. Every project reflects our commitment to zero-leak integrity and operational reliability.

70MPa Ultra-High Pressure Metal 61-Pin Subsea Connector

Ultra-Miniature Subsea Watertight Connector Series (2-28 Pins)

High-Strength Titanium Alloy Subsea Penetrator

Multi-Core Split-Type Watertight Connector (Diverse Configurations)

Custom High-Intensity Subsea LED Light & Mounting Bracket System

Integrated Subsea Interconnect & Imaging Solutions

HYSF-high-density-25-pin-subsea-signal-connector-for-oceanographic-sensors

HYSF-custom-6-pin-40A-underwater-power-distribution-connector

Single-Pin High-Current (150A) Subsea Power Connector

5MP High-Definition Underwater Camera (40MPa / 316L Stainless Steel)

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

Miniature Subsea Watertight Connector (Marine Bronze Base)

Custom Molded Subsea Penetrator with Integrated Multi-Core Cable

Custom Miniature Single-Core In-Line Watertight Connector

60MPa High-Pressure Metal Shell Watertight Connector (4-61 Pins)

Micro Flange 3-Pin Subsea Bulkhead Connector (IL4MF Compatible)

Custom Subsea Bulkhead Flange Joint Connector

HYSF-140A-180A-high-current-underwater-power-connector-for-thrusters

Right Angle Molded Micro Bulkhead Connector (LPMBH-IL12/16MF Compatible)

Gigabit Ethernet 12-Pin Subsea Connector (4 Power + 8 Network)

All-New Next-Generation Subsea IP Network Camera Series

5MP High-Definition Underwater Observation Camera (40MPa)

Custom Branching Subsea Cable Network (Tree Topology)

Custom 1-to-3 Fan-out Subsea Splitter Cable System

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

50MPa High-Precision Subsea Pressure Sensor

Custom Branching Subsea Cable Network (Y-Splitter & Multi-Node)

MCPBOF2-8MF Oil-Filled Pressure Compensated Connector (8-Pin)

10-Pin Ethernet Subsea Connector (2 Power + 8 Network Cores)

Custom Retractable Subsea Spiral Coiled Cable (Spring Cable)

High-Frequency Subsea Coaxial RF Connector Assembly (50-3 / 50-5)

MCBH-Hybrid 4+2 Photoelectric Subsea Connector (Power & Fiber Optic)

PBOF Series Pressure-Balanced Oil-Filled Subsea Connectors

RMG Series 4-Pin Subsea Engineering Cable Plug

High-Performance Photoelectric Hybrid Subsea Connector

60MPa Metal Shell Bulkhead Connector with Triple Seal (4-61 Pins)

Custom 6-Pin / 40A Medium-Power Subsea Connector

Start Your Subsea Project with HYSF

Whether you need a quick quote for standard connectors or a complex custom cable assembly, our engineering team is ready to assist. Expect a technical response within 12 hours.

John Zhang

CEO