How to Use the Antminer & Whatsminer Power Supply Test Rack
The Antminer & Whatsminer power supply test rack is designed to help miners safely test and verify their ASIC mining power supplies before use. This guide provides essential safety instructions, functional details, and step-by-step usage directions to ensure proper handling of your PSU testing equipment.
General Safety Guidelines
- Always follow safety precautions to avoid personal injury.
- Use the product only as specified to prevent damage or hazards.
- Never connect a short-circuited or damaged power supply.
- Prevent fire hazards and electrical injuries by handling equipment correctly.
- Ensure the device is connected to the correct power source.
- The test rack is recommended to use a 12V/1A power input.
- Confirm the power status before testing to avoid electric shock or short circuits.
- Once activated, Antminer and Whatsminer PSUs output high current—do not short positive and negative terminals.
- Read the full manual before testing for complete operation details.
- Contact the manufacturer if the product malfunctions.
Supported Power Supply Models
The test rack supports multiple Antminer and Whatsminer PSU models, including:
- Whatsminer: P20, P21, P21D, P21E, P221C, P222C
- Antminer: APW8, APW9, APW11, APW12, APW17 series
Interface & Controls
The test rack is equipped with the following interfaces and control buttons:
- J1: Test rack power input
- T1: Antminer PSU interface
- T2: Whatsminer PSU interface

Control Buttons:
- K1: Select PSU model (up)
- K2: Select PSU model (down)
- K3: Power on/off
- K4: Self-test button

Step-by-Step Usage Instructions
- Power on the test rack and press K2 to select the PSU model (example: APW12). For Antminer APW8/APW9/APW11/APW12/APW17, select the APW8 option for testing.
- Connect the PSU to be tested and press K3 to turn it on.
- The indicator light will show the PSU status: Green = ON, Red = OFF.
- If the PSU does not output voltage after turning on, check the PSU model, condition, and manufacturer support compatibility.
- Antminer APW series outputs maximum rated voltage; Whatsminer PSUs output 12V. Note: Whatsminer PSUs delay shutdown for 10–30 seconds after pressing the off button.


Final Notes
Thank you for choosing our PSU test rack. If you encounter any issues during operation, please contact us immediately. We wish you safe testing and successful crypto mining operations!












