Syy cable | Professional Cable & Connector Manufacturer & Custom Assembly

Fast Turnaround & Flexible Solutions

Trusted & Certified Manufacturer

With multiple industry certifications and long-term partnerships with clients worldwide.

Shenzhen Shiyueyun Technology Co., Ltd. is a cable and connectivity solutions provider engaged in R&D, manufacturing and global trading, headquartered in Shenzhen — the heart of China’s electronics supply chain. Leveraging the mature manufacturing ecosystem of the Pearl River Delta, we deliver both standard and fully customized wiring products and services to customers worldwide.

Strict Quality Control

We implement strict quality‑control procedures throughout the whole production cycle. Every batch of cables and connectors undergoes rigorous testing before shipment to guarantee stable, reliable product performance.

Customized Service & Fast Support

Flexible custom & private‑label packaging service,Pre‑sales technical consultation & drawing review

R&D & Customization Capability

Experienced in‑house R&D engineering team,Complete OEM & ODM development workflow

Discover Our Signature Series

Bestselling Products

Our most popular OEM/ODM products, ready for bulk orders and tailored modifications.

AC Bare-End Power Adapter Pigtail Lead Wire

Panel-Mount DC Barrel Power Cable

Heavy-Duty High-Current Industrial Power Cable

3-Core Flexible Multi-Core Copper Power Cable

DC Bare-End Pigtail Power Wire

DC Y-Splitter Power Cable

DC Barrel Jack Male-Female Extension Cable

DC 5.52.1mm Male to Female Pigtail Power Cord

Share your requirements with our team, and we will provide a tailored product solution based on your specifications, budget and timeline.

Custom Solution Design

Share your requirements with our team, and we will provide a tailored product solution based on your specifications, budget and timeline.

Fast Prototyping & Sample Approval

Quick turnaround for prototype development and sampling, helping you verify product performance before mass production.

Mass Production & Reliable Delivery

Stable production capacity with strict quality control, supporting flexible lead times and global shipping arrangements.

Why Choose Us

For cable and connector sourcing, you need a reliable manufacturer who understands wholesale, OEM and industrial‑project requirements.

OEM/ODM Projects Delivered

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We have successfully delivered over 50,000 customized projects for global brands, from small-batch prototypes to mass production orders.

Years of experience

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With over 10 years in electronic accessories manufacturing, we comply with international standards and support global market certifications.

In-House Engineering Experts

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Our team of 100+ engineers and technicians provides full support from product design, testing to after-sales technical assistance.

Trusted feedback from global partners who have chosen us as their electronic accessories manufacturer.

SYY Tech has been our go-to supplier for charging accessories for 3 years. Their multi-port chargers meet our exact specs, and the lead time is always reliable. The team is proactive with updates, even for large bulk orders.

Md Ashik Customer

We needed custom USB-C hubs with specific form factors for our corporate clients. The engineering team adjusted the design quickly, and the samples were approved on the first round. The final production quality was excellent.

Md shadin Customer

As an Amazon seller, we need consistent quality and fast reorders. SYY Tech’s wireless chargers have zero defect rates, and their team helped us with packaging customization for our store brand. Highly recommend!

Md jewel Customer

Working with SYY Tech made our custom cable project launch stress-free. From initial design consultation to small-batch production, they guided us through every step. The final products exceeded our expectations in both quality and cost.