1. Product Overview
This document provides essential information for the safe and effective use of your YUSTDA 6FT AC Power Cord. This high-quality power cable is designed to provide reliable power to compatible devices, such as the QFX SBX-410205 Professional PA Speaker 210.

Image 1.1: The YUSTDA 6FT AC Power Cord, featuring a 2-prong USA standard plug and a female connector.
Key features of this power cord include:
- High Quality Construction: Manufactured with premium materials for durability and performance.
- Standard Compatibility: Features a 2-prong USA standard power cable design.
- Optimal Length: Provides a convenient 6-foot (approximately 1.8 meters) cable length.
- Safety Features: Incorporates multiple protections including over current, total power, over voltage, and short circuit protection.
- Certifications: Certified by FCC, CE, and RoHS standards.

Image 1.2: Illustration of the power cable's internal structure, highlighting high-quality copper wire and PVC insulation jacket for enhanced durability and safety.
2. Setup Instructions
Follow these steps to properly connect your AC power cord:
- Identify Ports: Locate the power input port on your device (e.g., QFX SBX-410205 Professional PA Speaker 210) and an available standard AC wall outlet.
- Connect to Device: Insert the female end of the YUSTDA AC Power Cord firmly into the power input port of your device. Ensure a snug fit.
- Connect to Power Source: Plug the 2-prong male end of the power cord into a standard 120V AC wall outlet.
- Verify Connection: Ensure both ends of the cable are securely connected before powering on your device.
Note: Always ensure the power source voltage matches the requirements of your device to prevent damage.
3. Operating Guidelines
The YUSTDA AC Power Cord is designed for simple plug-and-play operation. Once connected as per the setup instructions, your device should receive power. The integrated safety features work automatically to protect your device.

Image 3.1: Visual representation of the power cord's safety design, including protections against over-temperature, over-voltage, over-current, and short circuits.
Safety Precautions:
- Do not use the power cord if it appears damaged.
- Avoid placing heavy objects on the cable.
- Keep the cable away from heat sources and moisture.
- Always unplug the cable by gripping the plug, not the cord itself.
4. Maintenance
The YUSTDA AC Power Cord requires minimal maintenance. To ensure its longevity and safe operation:
- Cleaning: Gently wipe the cable with a dry, soft cloth if it becomes dusty. Do not use liquid cleaners.
- Storage: When not in use, coil the cable loosely and store it in a cool, dry place, away from direct sunlight and extreme temperatures.
- Inspection: Periodically inspect the cable for any signs of wear, cuts, or damage to the insulation or connectors. Discontinue use if damage is found.
5. Troubleshooting
If you experience issues with your power cord, consider the following common troubleshooting steps:
- No Power to Device:
- Ensure both ends of the power cord are securely plugged into the device and the wall outlet.
- Test the wall outlet with another known working appliance to confirm it has power.
- Check for any tripped circuit breakers in your home or facility.
- Loose Connection:
- Unplug and re-plug the cable firmly into both the device and the power source.
- Cable Damage:
- Visually inspect the entire length of the cable for any cuts, fraying, or bent pins on the plugs. If damaged, replace the cable immediately.
If problems persist after attempting these steps, please contact customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Product Type | AC Power Cord Cable Lead |
| Brand | YUSTDA |
| Compatibility | QFX SBX-410205 Professional PA Speaker 210 and similar devices requiring a 2-prong AC cord. |
| Cable Length | 6 feet (approximately 1.8 meters) |
| Connector Type | Male-to-Female, 2-prong USA standard |
| Plug Format | Type B |
| Safety Features | Over current protection, Total power protection, Over voltage protection, Short Circuit Protection |
| Certifications | FCC, CE, RoHS |
| Manufacturer | YUSTDA |
| First Available Date | October 24, 2019 |

Image 6.1: Depiction of the power adapter's durable and compact design, emphasizing high-quality control and suitability for various environments.
7. Warranty and Support
For specific warranty information regarding your YUSTDA AC Power Cord, please refer to the documentation provided at the time of purchase or contact the seller directly. Warranty terms may vary.
If you have any questions, encounter problems, or require technical assistance, please contact customer support:
- Email: epcustomerservice@yahoo.com
Please provide your product model and a detailed description of the issue when contacting support to facilitate a quicker resolution.