1. Introduction
This manual provides essential instructions for the safe and effective use of your SIMREX X300C USB Charger. Please read this manual thoroughly before using the product and retain it for future reference. The SIMREX X300C is designed to provide reliable power transfer for devices compatible with Micro-USB charging ports.
2. Product Overview
The SIMREX X300C is a USB charging cable featuring a standard USB-A connector on one end and a Micro-USB connector on the other. It is designed for connecting compatible electronic devices to a USB power source for charging.

3. Setup
- Identify Connectors: Locate the USB-A connector (the larger, rectangular end) and the Micro-USB connector (the smaller, trapezoidal end) on the cable.
- Connect to Power Source: Insert the USB-A connector into a compatible USB power source, such as a wall adapter, computer USB port, power bank, or car charger. Ensure the power source is functional and provides adequate power.
- Connect to Device: Insert the Micro-USB connector into the charging port of your electronic device. Ensure the connector is oriented correctly to avoid damage to the port or cable.
4. Operating Instructions
Once the SIMREX X300C USB Charger is properly connected to both a power source and your device, charging should begin automatically. Most devices will display a charging indicator (e.g., a battery icon with a lightning bolt or an LED light) to confirm that power is being received.
- Secure Connection: Always ensure both ends of the cable are firmly seated in their respective ports to maintain a stable connection and prevent interruptions during charging.
- Power Source Compatibility: Use only certified and appropriate USB power adapters. Using an underpowered or faulty adapter may result in slow charging or no charge at all.
- Safety Precautions: Avoid using the cable if it appears damaged. Do not expose the cable to liquids or extreme temperatures. Disconnect the cable by pulling on the connector housing, not the cable itself, to prevent damage.
5. Maintenance
- Cleaning: Keep the cable and connectors clean and free of dust or debris. Use a soft, dry cloth to wipe the cable. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store the cable in a cool, dry place. Avoid tightly coiling or bending the cable at sharp angles, which can damage the internal wires.
- Inspection: Periodically inspect the cable for any signs of wear, fraying, or damage to the connectors. Discontinue use if any damage is observed.
6. Troubleshooting
- Device Not Charging:
- Ensure both ends of the cable are securely connected.
- Try a different USB power source (e.g., another wall adapter or computer port).
- Test the cable with a different Micro-USB compatible device to rule out a device issue.
- Inspect the Micro-USB port on your device for any obstructions or damage.
- Slow Charging:
- Verify that your USB power source provides sufficient current (amperage) for your device. Some devices require higher current for optimal charging speeds.
- Avoid using the device heavily while it is charging, as this can slow down the charging process.
- Cable Damage:
- If the cable shows signs of fraying, exposed wires, or bent/corroded connectors, discontinue use immediately to prevent potential hazards.
7. Specifications
| Brand | SIMREX |
| Model Number | UK-X307 |
| Product Dimensions | 9.45 x 0.59 x 0.39 inches |
| Item Weight | 0.81 ounces (0.02 Kilograms) |
| Input Voltage | 240 Volts (typical for USB power sources) |
| Connector Type | USB-A to Micro-USB |
| ASIN | B07L96K6ZB |
8. Warranty and Support
SIMREX products are manufactured to high-quality standards. For information regarding warranty coverage, terms, and conditions, please refer to the warranty card included with your purchase or visit the official SIMREX website. For technical support or assistance with your SIMREX X300C USB Charger, please contact SIMREX customer service through their official channels.
Official SIMREX Website: Visit the SIMREX Store on Amazon




