1. Introduction
This manual provides essential information for the safe and efficient use of your KFD Universal 24V 65W Power Supply Adapter. Please read these instructions thoroughly before operating the device and retain this manual for future reference.

Image 1: KFD Universal 24V 65W Power Supply Adapter with included DC tips and power cord.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Do not expose the adapter to water, moisture, or high humidity.
- Avoid extreme temperatures. Operate and store the adapter in a cool, dry place.
- Do not disassemble or modify the adapter. Unauthorized modifications can lead to hazards and void the warranty.
- Ensure the adapter is used with devices that match its voltage and current specifications (24V, up to 2.7A, 65W). Exceeding these limits can damage the adapter and the connected device.
- Always select the correct DC tip for your device to prevent damage.
- Keep the adapter away from children and pets.
- Unplug the adapter from the power outlet when not in use for extended periods.
- If the adapter or cable is damaged, discontinue use immediately and contact support.

Image 2: The KFD adapter is UL / CE / FCC / RoHS certified for safety.
3. Product Overview
The KFD Universal 24V 65W Power Supply Adapter is designed to provide reliable power to a wide range of electronic devices. It features a main adapter unit, a detachable AC power cord, and a set of 10 interchangeable DC connector tips to ensure broad compatibility.
3.1 Main Adapter Unit

Image 3: The main adapter unit with input/output details and safety certifications.
- Input: 100-240VAC, 50/60Hz (Worldwide compatible)
- Output: 24V DC, 2.7A, 65W (Max)
- Equipped with multiple safety protections including overload, over-voltage, and short-circuit protection.
3.2 DC Connector Tips
The adapter includes 10 selectable DC connector tips to fit various devices. It is crucial to select the correct tip size and polarity for your specific device.

Image 4: Detailed view of the 10 DC connector tips and their dimensions.
- 6.5*3.0mm
- 6.5*4.4mm
- 5.5*3.0mm
- 5.5*2.5mm
- 4.8*1.7mm
- 4.0*1.7mm
- 3.5*1.35mm
- 3.0*1.0mm
- 2.5*0.7mm
- Green Tip (LED Terminal Connector)
4. Compatibility
This universal power supply is compatible with a broad range of 24V DC devices, provided their current draw is 2.7A or less (e.g., 2.5A, 2A, 1.8A, 1.5A, 1.2A, 1A, 0.8A, 0.5A). Always verify your device's voltage and current requirements before connecting.

Image 5: Examples of devices compatible with the KFD 24V Universal Power Supply.
Common compatible devices include:
- 3D Printers (e.g., ELEGOO Mars series, Anycubic Photon Mono series, Phrozen Sonic Mini series, Creality UW-01/UW-02)
- Scanners (e.g., Fujitsu ScanSnap S1500, HP ScanJet series, Epson Perfection series)
- LED Strip Lights (5050/3528/5630 SMD RGB)
- Routers, Monitors, CCTV Cameras, Hubs
- Cutting Machines (e.g., Silhouette Cameo series, Cricut Maker 3, Cricut Explore 3 - 24V version)
- Label Printers (e.g., Dymo LabelWriter series, Munbyn Thermal Printer, Jadens Shipping Label Printer)
- Soundbars and Speakers (e.g., Harman/Kardon GO+PLAY, JBL, Bose, Samsung, Denon, Vizio, Polk Audio)
- Other 24V devices such as essential oil diffusers, humidifiers, digital pianos, portable keyboards, IR illuminators, and certain electric ride-on cars.
5. Setup
Follow these steps to set up your KFD Universal Power Supply Adapter:
- Verify Device Requirements: Before connecting, confirm that your device requires 24V DC input and draws a current of 2.7A or less. Check your device's original power adapter or its specifications label.
- Select the Correct DC Tip: Identify the appropriate DC connector tip from the provided 10 options that matches your device's power input port. Ensure a snug fit. Refer to Image 4 for tip dimensions.
- Attach the DC Tip: Connect the selected DC tip to the output cable of the main adapter unit.
- Connect to Device: Plug the DC output cable (with the attached tip) into your electronic device's power input port.
- Connect AC Power: Plug the detachable AC power cord into the main adapter unit, then plug the other end into a standard 100-240V AC wall outlet.
- Power On: Your device should now receive power. The adapter may have an indicator light to show it is receiving power.
Video 1: Product Overview Video demonstrating the adapter and its components.
Video 2: Demonstration of a 24V 2.5A DC Power Supply, showing connection and basic use.
6. Operating Instructions
Once properly set up, the KFD Universal Power Supply Adapter operates automatically. It provides a constant 24V DC output to your connected device. No further user interaction is typically required during operation.
- Ensure the adapter is placed in a well-ventilated area to prevent overheating.
- Avoid placing heavy objects on the cables or adapter.
- Do not pull the cable to disconnect from the wall outlet or device; always grasp the plug firmly.
7. Maintenance
Regular maintenance helps prolong the life of your power adapter:
- Cleaning: Disconnect the adapter from all power sources and devices before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or aerosols.
- Storage: When not in use, store the adapter and its tips in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid tightly coiling the cables to prevent damage.
- Inspection: Periodically inspect the cables and connectors for any signs of wear, cuts, or damage. If any damage is found, replace the adapter immediately.
8. Troubleshooting
If you encounter issues with your KFD power adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on. | Incorrect DC tip selected. Loose connection. Power outlet issue. Device power requirements exceed adapter capacity. | Ensure the correct DC tip is used and securely connected. Check all cable connections. Test the power outlet with another device. Verify your device's voltage and current requirements match the adapter (24V, ≤2.7A). |
| Adapter feels warm during operation. | Normal operation. Poor ventilation. Overload. | A slight warmth is normal. Ensure the adapter is in a well-ventilated area. If excessively hot, disconnect immediately and verify device power requirements. |
| Intermittent power to device. | Loose connection at DC tip or AC plug. Damaged cable. | Check all connections for tightness. Inspect cables for damage. Replace if damaged. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | KFD |
| Input Voltage | 100-240 Volts AC |
| Output Voltage | 24 Volts DC |
| Output Current | 2.7 Amps (Max) |
| Wattage | 65 Watts (Max) |
| Connector Type | Barrel Connector (with 10 interchangeable tips) |
| Special Feature | Short Circuit Protection, Overload Protection, Over-voltage Protection |
| Certifications | UL / CE / FCC / RoHS |
| Item Weight | 12.3 ounces |
| Package Dimensions | 5.51 x 4.49 x 1.77 inches |
10. Warranty and Support
KFD products are backed by a 30-day free exchange policy and a 36-month warranty. For any questions, technical support, or warranty claims, please contact KFD customer service through the retailer where the product was purchased.
When contacting support, please provide your product model number and purchase details.





