1. Breadboard-specific power module, compatible with 5V and 3.3V. Suitable for MB102 breadboard. 2. Input voltage: 6.5–12V DC or USB power supply. 3. Output voltage: 3.3V or 5V, selectable via jumper cap. 4. Output current: Up to 700 mA (peak). 5. Independent upper and lower channel control; each can be set to 0V, 3.3V, or 5V. Includes two sets of onboard 3.3V and 5V DC output pins with self-locking switches and indicator LEDs. 6. Module requires input voltage of 6.5V–12V to regulate output properly. Inputting 5V will not yield stable 5V output due to voltage drop across the regulator. 7. When using only 3.3V output, the 5V output terminals will not provide regulated 5V — they remain unregulated unless configured accordingly. 8. This is a standalone power module — no breadboard included. 9. Appearance, color, and silkscreen may vary slightly between batches. This does not affect functionality. 10. Material: PCB. Color: Black. Package Contents: 10 × Power Supply Modules. Note: Colors shown in images may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.