What communication interfaces are available?

It supports wired communication via USB Type-C or RJ45, wireless communication via Bluetooth 5.0, and optional fiber optic communication for high-speed data transmission.

What certifications does the product hold?

The products are qualified by CNAS and other third-party testing, and hold CE certificates from UDEM for Low Voltage Directive (LVD) and Electromagnetic Compatibility (EMC).

Drone Tether Power System Dji Matrice 400 Constant Voltage Output From Rosefinch-The Professional Tether Power Manufacturer

Name: Drone Tether Power System Dji Matrice 400 Constant Voltage Output From Rosefinch-The Professional Tether Power Manufacturer
Brand: Nanjing Rosefinch Technology Co., Ltd
SKU: 2247046665

Jiangsu, ChinaNanjing Rosefinch Technology Co., Ltd

US$6,488.00

1-5 Pieces

US$6,266.00

6+ Pieces

Product profile

Customization

Available

Supporting Flight Duration

≥ 24h

Cable Length

55m 110m

Ground Module Input Voltage

190-240VAC Wide Range Input

Ground Module Output Voltage

700~750VDC Adjustable

Ground Module Output Power

3500W (Rated Long-Term Output)

Ground Module Weight

12.5 ± 0.2kg

Air Module Input Voltage

580~810VDC Wide Range Input

Air Module Output Voltage

51.8 ± 0.5VDC

Air Module Output Power

3000W (Rated Long-Term Output)

Air Module Weight

995 ± 10g

Transport Package

Plastic Hard Case

Specification

720× 570× 380± 5mm

Trademark

Rosefinch

Origin

Nanjing, China

Production Capacity

1000/Year

Key features

Automated Cable Control: Intelligent winch system automatically reels in/out cables during takeoff and landing without manual intervention.

Lightweight & Portable: Compact design allows single-person carrying and rapid field deployment with backpack storage.

High Safety Protection: Features electrical isolation, overvoltage/undervoltage protection, and IPx5 waterproof rating.

Backup Power Safety: Built-in backup battery ensures automatic cable retraction during power outages to prevent entanglement.

Real-time Monitoring: 4.3-inch touch screen displays real-time power, voltage, current, temperature, and fault logs.

Versatile Communication: Supports USB Type-C, RJ45, Bluetooth 5.0, and optional fiber optic for high-speed data transmission.

CE Certified Quality: Products qualified by CNAS and hold CE certificates from UDEM for LVD and EMC compliance.

Company profile

Nanjing Rosefinch Technology Co., Ltd

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤5.12h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company with business activities covering technology services, unmanned aerial vehicle sales, electrical and electronic equipment, software, security and fire equipment, and import/export. It holds ISO 9001 and ISO 14001 certifications and reports ODM and OEM capabilities, including products designed for several DJI drone platforms. Customization is offered from designs and samples, with full, minor, and flexible customization options. Production information indicates tether power system output of 500 pieces, while the supplier reports fewer than five quality-control staff and six to ten years of R&D engineer experience. Service procedures exist for corrective actions and customer complaints, but quality assurance status is unknown. The supplier lacks overseas showrooms, overseas agents or branches, and offline trade-show participation. Financial records are referenced for 2020–2022, but no performance values are provided, so financial credibility cannot be determined.

Supplier typeThe supplier is explicitly classified as a trading company. Its stated scope also includes technology services, equipment and electronic-product sales, software, and import/export activities, indicating a broad commercial and technical business profile rather than a clearly identified manufacturing-only entity.

CertificationsThe supplier reports holding ISO 9001 and ISO 14001 certifications. These are explicit management-system certifications and provide positive evidence for quality and environmental management, although no certification validity dates or scope details are supplied.

After-Sales capabilityThe supplier has documented procedures and records for corrective and preventive actions and customer complaints, and reports lead times within 15 working days in both peak and off-season periods. However, it has no overseas showroom, overseas agent or branch, or offline trade-show participation, and its service-capability assessment procedure lacks a written procedure, limiting evidence of broad overseas support.

R&D capabilityThe supplier explicitly offers ODM services and OEM services for popular brands, reports six to ten years of total R&D engineer experience, and lists tether-station products for multiple DJI platforms. It does not have an available SDK, so innovation capability is supported for product customization and development but not for SDK-based integration.

Production capacityThe supplier reports annual productivity of 500 tether power system pieces and describes products covering multiple tether-station capacities and drone platforms. It also reports fewer than five quality-control staff, while the supplied slices do not establish broader production scale, facility capacity, or manufacturing ownership.

Customization capabilityThe supplier explicitly supports customization from designs, customization from samples, full customization, minor customization, and flexible customization, and also offers ODM services. These statements provide direct evidence of substantial design and customization capability.

Product Q&A

Q:Is the cable operation manual or automatic?

The system features an intelligent winch with automated control. It automatically follows the drone's takeoff and landing to retract and release cables without requiring manual operation.

Q:What are the ground module input and output specifications?

The ground module accepts 190-240VAC wide-range input and provides an adjustable 700-750VDC output with a rated long-term power of 3500W.

Q:How does the system protect the drone's battery?

It uses a constant voltage output scheme that prevents charging or discharging phenomena, ensuring the backup battery remains fully charged and avoids capacity loss.

Q:What safety features are included in the power system?

The system includes electrical isolation between AC and DC, input overvoltage/undervoltage protection, output overcurrent/short circuit protection, and an IPx5 waterproof rating.

Q:What happens if there is a sudden power outage?

The system has a built-in backup power supply that automatically switches to backup mode to complete emergency wire retraction, preventing cable entanglement.