The LM2596x4CH power supply board is a multi-output high-efficiency DC to DC step down (buck) switching power supply solution. It supports 3.3V, 5V, 12V and adjustable 4 channels simultaneous voltage output. Each power supply channel support 3A maximum output load current and total 8A maximum output load current.
LM2596x4CH is applicable for the applications which need simultaneous multichannel power supply. It's very easy for setup and high conversion efficiency.

May I draw your attention to below items:
1: For the adjustable channel, it's continuously adjustable. please adjust the blue potentiometer knob (clockwise rotation generally boost, buck counterclockwise rotation) and with a multimeter to monitor the output voltage reaches the required voltage.
2: When the output current is greater than 2.5A, output power greater than 10W or work for a long hours you'd better add a heat sink on this LM2596.
3. We provide alternative power input channel. Don't power them simultaneously.
4. Double check your connection and the silk-screen on board. Make sure that the positive and negative poles are not connected reversely, and Do not reverse the input and output interface.

Module type: switching power supply
Input voltage: 13V~35V
Output Voltage:
3.3V------------Maximum 3A/9.9W
5V------------Maximum 3A/15W
12V------------Maximum 3A/36W
ADJ Voltage------------Maximum 3A/36W
Maximum Out Current : total 8A, ecah channel 3A.
Transfer Efficiency: >85%
Switching Frequency: 150Khz
Output Noise:
No load---15Mv
12V/2A --- Working Temperature: -20°~ 70°
Relative humidity: 15-90%, not condensing
Storage Temperature: -40°~ 85°
PCBA Size (L * W * H): 113.00mm * 67.90mm*15mm
Weight: 90g