USB-A to DC Step-Up Power Converter Cable (5V to 21V) - Meets North American Safety Standards - For Wi-Fi Routers, CCTVs & Amplifiers Also Known As: USB Voltage Booster Cable / 5V to 21V Step-Up Adapter

USB-A to DC Step-Up Power Converter Cable Overview & Specifications

Product Description

This professional-grade step-up voltage converter cable provides a reliable power bridge between standard 5V USB sources and 21V DC-powered equipment. Ideal for commercial deployments, field service technicians, and emergency backup setups, it effortlessly powers 21V networking devices, surveillance cameras, and specialized audio equipment directly from commercial power banks or multi-port wall chargers.

Technical Specifications

Key Features & Design Details

Engineering & Design

Engineered for reliable power delivery, the inline boost module is encased in a heat-resistant ABS+PC housing for excellent thermal dissipation. The precision-machined DC plug ensures a snug, wobble-free connection to your devices, preventing accidental power drops. Perfectly compatible with broadband routers, optical modems, LED lighting controls, and IoT gateways that require a 21-volt input.

Quick Usage Steps

1. Plug the USB-A connector into a high-quality 5V USB power adapter or high-capacity power bank.
2. Check your target device's label to ensure it explicitly requires 21V DC and its operating current does not exceed the cable's output rating.
3. Insert the DC barrel plug securely into the device's power port.
4. Observe the device indicators to confirm successful power initialization.

Available Colors and Lengths

To accommodate diverse deployment environments, we offer standard off-the-shelf configurations:

• Common Colors: Professional Black, Clean White
• Standard Lengths: 3 ft (0.9m) / 6 ft (1.8m) / 10 ft (3m)

Customization Options & Guarantee

Tailored to Your Specific Needs (OEM/ODM)

We support comprehensive OEM and ODM services for B2B clients. Whether you need custom DC barrel dimensions (e.g., 4.0 x 1.7mm or 3.5 x 1.35mm), specific wire gauges for lower resistance, exact cable lengths for specialized machinery, or laser-engraved corporate logos on the boost module casing, our R&D team is ready to deliver exact specifications.

Our Commitment to Quality

24-hour online customer service is available to promptly address any issues arising from your order. If there are any quality problems with this batch of goods, we are willing to replace them for you.