Feature: 1. It is convenient for you to insert 16 servo motors in 4 groups of 3‑pin connectors at a time. 2. The plug of the servo motor is slightly wider than 0.1in, so you can put 4 pairs of 0.1in connectors. 3. Place a large capacitor on the V+ line, and the maximum external input voltage depends on this 10V1000uf capacitor. 4. There is a 220 ohm resistor on all PWM output lines to protect them and drive the LED easily. 5. 5V compliant, so a 3.3V microcontroller can control it and safely drive it up to 6V outputs. 6. Support using only two pins to control 16 free‑running PWM outputs – you can even chain up 62 breakouts to control up to 992 PWM outputs. 7. 12‑bit resolution for each output ‑ for servos, that means about 4us resolution at 60Hz update rate. Specification: Item Type: PWM Servo Driver Product Material: Printed Circuit Board Model: PCA9685. Package List: 1 x PWM Servo Driver