1. 2 interface for 5V Servo connected to the high-resolution dedicated timer - no jitter! 2. Can drive 4 DC motors or 2 stepper motors or 2 Servo 3. Up to 4 bi-directional DC motors with individual 8-bit speed selection 4. Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping. 5. 4 H-Bridges: per bridge provides 0.6A (1.2A current) with thermal protection, can run motors on 4.5V to 36V DC 6. Pull down resistors keep motors disabled during power-up 7. reset button 8. 2 external terminal power interface, for seperate logic/motor supplies 9. Tested compatible for , Diecimila & Duemilanove color:Blue Material:PC+Metal Package Contents: 2 x Motor Drive Shield L293D Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.