1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your RMHUNTIC Megmeet MEGAPOWER1000INVT 48V Inverter Power Supply. This power module is designed to convert 48V DC input to 220V AC output, suitable for various desktop and server applications. Please read this manual thoroughly before using the product.

Figure 1: Front view of the MEGAPOWER1000INVT Power Module
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the product:
- Ensure the input voltage matches the specified 48V DC. Incorrect voltage can cause severe damage.
- Do not open the power supply casing. There are no user-serviceable parts inside.
- Ensure proper ventilation around the unit to prevent overheating.
- Avoid exposing the unit to moisture, dust, or extreme temperatures.
- Disconnect all power sources before making any connections or performing maintenance.
- This device is intended for use in desktop and server environments.
3. Specifications
| Feature | Specification |
|---|---|
| Model Number | MEGAPOWER1000INVT |
| Brand Name | RMHUNTIC |
| Application | Desktop, Server |
| PFC Type | Active |
| Modular | Non-Modular |
| Fans | 1 |
| Rating Power | < 150W (Note: Product title indicates 1000W, this specification might refer to a specific output rail or be a general category. Please verify actual power rating from product label.) |
| CPU Power Connector | 4 pin |
| Graphics Card 12V Pin Number | 8 pin + 2 x 6 pin |
| Number of SATA Ports | 3 |
| D-type Bus Number | 3 |
| 80 PLUS Certification | Other Certification (CE) |
| Certification | CE |
| Product Status | Refurbished |
| Test Condition | 100% tested before shipping |
| Origin | Mainland China |

Figure 2: Side view diagram with dimensions

Figure 3: Top view diagram with mounting points

Figure 4: Bottom view diagram with edge connector details
4. Package Contents
The package typically includes:
- 1 x RMHUNTIC Megmeet MEGAPOWER1000INVT Power Module (Refurbished)
Note: Additional cables or accessories may vary depending on the specific purchase.
5. Setup
5.1 Physical Installation
- Choose a suitable location within your desktop or server chassis that allows for adequate airflow and ventilation.
- Align the power module with the designated slot or mounting points. Refer to Figure 3 and Figure 4 for mounting dimensions and connector orientation.
- Secure the power module using appropriate screws or retention mechanisms provided by your chassis.
5.2 Electrical Connections
Before making any connections, ensure all power to the system is turned off and disconnected from the mains supply.
- 48V DC Input: Connect the 48V DC input power source to the designated input terminals on the power module. Ensure correct polarity.
- 220V AC Output: Connect your system's power distribution unit or components requiring 220V AC to the output terminals.
- CPU Power: Connect the 4-pin CPU power connector to your motherboard's CPU power socket.
- Graphics Card Power: Connect the 8-pin and two 6-pin graphics card power connectors to your graphics cards as required.
- SATA Devices: Connect the 3 available SATA power connectors to your SATA hard drives, SSDs, or optical drives.
- D-type Bus Devices: Connect the 3 available D-type bus (Molex) power connectors to compatible peripherals.

Figure 5: Front Panel Indicators and Fan Vents

Figure 6: Rear Panel Connectors
5.3 Initial Power-Up
- After all connections are securely made, reconnect the main power to your system.
- Power on your system. Observe the indicators on the power module.
6. Operating Instructions
The MEGAPOWER1000INVT power module features status indicators on its front panel (refer to Figure 5):
- RUN Indicator: A green light indicates that the power supply is operating normally.
- ALM (Alarm) Indicator: A yellow or amber light indicates a warning condition, such as an over-temperature or minor voltage fluctuation. The unit may continue to operate, but investigation is recommended.
- FAULT Indicator: A red light indicates a critical error, such as over-current, short circuit, or severe voltage issue. The unit will typically shut down to protect itself and connected components.
7. Maintenance
- Cleaning: Periodically clean the exterior of the power supply and fan vents with a soft, dry cloth to prevent dust buildup. Ensure the system is powered off and unplugged before cleaning.
- Ventilation: Ensure that the fan vents are not obstructed to allow for proper airflow and cooling.
- Cable Management: Maintain tidy cable management to avoid obstructing airflow and to prevent strain on connectors.
8. Troubleshooting
| Problem | Indicator | Possible Cause | Solution |
|---|---|---|---|
| No power / Unit not turning on | All off | No input power, loose connections, internal fault. | Check 48V DC input connection. Verify power source. Ensure all cables are securely connected. |
| ALM (Alarm) light is on | Yellow/Amber | Over-temperature, minor voltage deviation, fan issue. | Check for proper ventilation. Ensure fan is spinning. Reduce load if possible. Monitor system stability. |
| FAULT light is on / Unit shuts down | Red | Over-current, short circuit, severe voltage issue, component failure. | Immediately power off and disconnect. Check all connected components for short circuits. Reduce load. If problem persists, contact support. |
9. User Tips
- Always ensure your 48V DC input source is stable and capable of providing sufficient current for the power module's rated output.
- When integrating into a server rack or custom enclosure, pay close attention to the airflow path to prevent hot spots.
- For critical applications, consider using a backup power solution or monitoring system to track the power module's status.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase records handy for faster assistance.
11. Product Overview Video
Video 1: Overview of the manufacturing or testing environment for similar power supply units.