1. onboard AMS1117-3.3 chip.

2. on-board DC jack, input voltage range of 4.75V-12V.

3. Board 7 * 7 self-locking switch, convenience to control power is turned on and off.

4. Onboard power indicator to indicate power is turned on.

5. output voltage interface, connection to facilitate the experimental.

6. the board size: 48.5 (mm) x12.5 (mm).

Package:

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1 X?Input: 4.75-12V Output: 3.3V? AMS1117--3.3V power supply module