1. Introduction
This manual provides essential information for the safe and efficient use of your DTK 19V 2.37A 45W Laptop Charger. Please read this manual thoroughly before using the product and retain it for future reference. This charger is designed to provide reliable power to compatible ASUS laptops and other devices requiring a 19V output with a 4.0*1.35mm connector.

Image 1.1: A laptop connected to the DTK charger, illustrating typical usage. The charger provides power to the laptop, ensuring continuous operation and battery charging.
2. Product Overview
The DTK 19V 2.37A 45W Laptop Charger is a high-quality power adapter designed for various laptop models. It features a robust design and includes safety certifications to ensure reliable performance.
Key Features:
- Input Voltage Range: 100-240V AC, 50/60Hz (worldwide compatibility).
- Output Power: 19V DC, 2.37A, 45W (also compatible with 19V 1.75A 33W devices).
- Connector Tip: 4.0 * 1.35mm (outer diameter * inner diameter).
- Cable Length: Total cord length extended to 2.8 meters for convenience.
- Safety Certifications: CE, FCC, RoHS compliant.

Image 2.1: The DTK laptop charger, including the main adapter unit, the DC output cable with the 4.0*1.35mm connector, and the AC input power cord (EU plug shown). This image displays all components of the power supply.

Image 2.2: A detailed view of the charger's label, indicating input (100-240V, 50-60Hz) and output (19V, 2.37A, 45W) specifications, along with safety warnings and certifications (CE, FCC, RoHS). This label is crucial for verifying compatibility and safety information.
3. Setup Instructions
Follow these steps to correctly set up your DTK laptop charger:
- Verify Compatibility: Before connecting, ensure your laptop requires a 19V power supply and has a 4.0*1.35mm DC input port. Check your laptop's original charger or specifications.
- Connect AC Power Cord: Plug the AC input power cord into the charger unit. Ensure it is firmly seated.
- Connect to Wall Outlet: Plug the other end of the AC power cord into a standard wall outlet (100-240V).
- Connect to Laptop: Carefully insert the 4.0*1.35mm DC output connector into your laptop's power input port. Do not force the connector.
- Power On: Once connected, your laptop should begin charging or power on if it was off.
Important Connector Information:
The correct connector size is critical for proper function and to prevent damage. This charger uses a 4.0mm outer diameter and 1.35mm inner diameter connector.

Image 3.1: A close-up view illustrating the precise dimensions of the DC connector tip: 4.0mm outer diameter and 1.35mm inner diameter. This visual aid helps users confirm the correct connector size for their device.

Image 3.2: A visual comparison of different DC connector sizes, clearly indicating that the 4.0mm x 1.35mm tip (marked with a green checkmark) is the correct one for this charger. Incorrect sizes are marked with red crosses, emphasizing the importance of matching the connector.
4. Operating Instructions
Once the charger is properly connected, it will automatically begin to supply power to your laptop and charge its battery. No additional user interaction is typically required for basic operation.
- Ensure the charger is placed in a well-ventilated area to prevent overheating.
- Avoid covering the charger with cloths or other materials during operation.
- Disconnect the charger from the wall outlet when not in use for extended periods.
- Do not use the charger if any part of it (cables, adapter block, connectors) appears damaged.
5. Maintenance
Proper maintenance ensures the longevity and safe operation of your charger:
- Cleaning: Use a soft, dry cloth to clean the charger. Do not use liquid cleaners or solvents.
- Storage: Store the charger in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Avoid bending or kinking the cables sharply. Do not place heavy objects on the cables.
- Inspection: Periodically inspect the cables and connectors for any signs of wear or damage.

Image 5.1: An illustration of the internal structure of the AC power cord, showing three 0.75mm² oxygen-free copper wires. This highlights the quality of the cable construction, which contributes to safe and efficient power delivery.
6. Troubleshooting
If you encounter issues with your DTK charger, consider the following:
- No Power/Charging:
- Ensure all cables are securely connected to the charger, wall outlet, and laptop.
- Try plugging the AC power cord into a different wall outlet to rule out a faulty outlet.
- Verify that the laptop's power input port is clean and free of debris.
- Incorrect Connector Fit:
- Double-check that your laptop requires a 4.0*1.35mm connector. Refer to Image 3.1 and 3.2. Using an incorrect connector can damage your laptop.
- Charger Overheating:
- Ensure the charger is in a well-ventilated area and not covered.
- If overheating persists, discontinue use and contact support.
- Laptop Not Recognizing Charger:
- Restart your laptop.
- Ensure the charger's output voltage and wattage match or are compatible with your laptop's requirements.
If these steps do not resolve the issue, please refer to the Warranty and Support section.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | DTK |
| Model Number | Q9-6HT1-714C |
| Input Voltage | 100-240V AC, 50/60Hz |
| Output Voltage | 19V DC |
| Output Amperage | 2.37A |
| Output Power | 45W (Compatible with 33W) |
| Connector Type | Proprietary DC Barrel Connector (4.0*1.35mm) |
| Compatible Devices | Laptops (various ASUS models) |
| Special Feature | Portable |
| Power Source | Electric Cable |
| Certifications | CE / FCC / RoHS |
| Total Cord Length | 2.8 meters |
8. Warranty and Support
DTK products are designed for reliability and performance. This product comes with the following warranty:
- Money-Back Guarantee: 30 days from the date of purchase.
- Product Warranty: 12 months from the date of purchase.
For warranty claims, technical support, or any inquiries regarding your DTK charger, please contact your retailer or visit the official DTK website for customer service information. Please have your model number (Q9-6HT1-714C) and proof of purchase ready when contacting support.

Image 8.1: The DTK charger block connected to its DC output cable. This image shows the compact design of the adapter unit and its integrated cable, ready for connection to a laptop.