19V 4A 76W Desktop Power Adapter | OEM Switching Power Supply Manufacturer

The Guangdong QINX 19V 4A 76W desktop power adapter is designed to supply consistent DC power with excellent voltage stability and dependable operating performance. Manufactured using high-quality components and rigorous production standards, it delivers low ripple output, high conversion efficiency, and reliable continuous operation for professional electronic equipment.

Its universal 100-240VAC input allows deployment across international markets without additional input voltage selection, making it an excellent choice for equipment manufacturers serving customers worldwide. The durable desktop enclosure supports efficient heat dissipation and long service life in commercial, office, laboratory, and industrial environments.

To satisfy different product requirements, Guangdong QINX provides comprehensive customization services including DC cable length, connector specifications, output polarity, enclosure finish, private labeling, logo printing, and packaging solutions. The adapter is suitable for OEM production, ODM development, and replacement power supply programs.

Applications

• Industrial network gateways
• Digital control terminals
• Compact medical electronic devices
• Smart display controllers
• Desktop communication equipment
• Industrial barcode terminals
• Electronic data acquisition systems
• Security monitoring controllers
• Automation interface modules
• Multimedia broadcasting equipment

Connector Options

A wide variety of DC connector configurations can be supplied, including:

• 5.5×2.1mm
• 5.5×2.5mm
• 6.5×4.4mm
• 4.0×1.7mm
• 3.5×1.35mm
• 2.5×0.7mm
• 3-pin DIN connectors
• GX12/GX16 aviation connectors
• XT30 connectors
• Molex connectors
• JST connectors
• Waterproof DC connectors
• Custom connector and cable assemblies

Safety Design

Incorporates multiple electrical protection features, including over-voltage protection, over-current protection, overload protection, and short-circuit protection, helping ensure reliable operation and enhanced equipment safety.

Certifications

Available with UL, cUL, CE, FCC, RoHS, UKCA, PSE, SAA, CB, and DOE Level VI certifications to satisfy the compliance requirements of different international markets.