This item is manufactured with premium material for durable and long-lasting use. It's easy to use and install. The precise design will ensure its practicability in the work with highly performance. Features - Color: Shown in the pictures. - Material: Electric components. - Size: Approx. 7 * 5.4 * 1cm (L*W*H). - 2 interface for 5V Servo connected to the Arduino"s high-resolution dedicated timer - no jitter. - Can drive 4 DC motors or 2 stepper motors or 2 Servo. - Up to 4 bi-directional DC motors with individual 8-bit selection. Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping. - 4 H-Bridges: per bridge provides 0.6A (1.2A peak current) with thermal protection, can run motors on 4.5V to 25V DC. Pull down resistors keep motors disabled during power-up. - 2 external terminal power interface, for separate logic/motor supplies. Tested compatible for Mega, Diecimila and Duemilanove.