For drivers who would like to use their favorite ESC or their favorite RX, but still use Kyosho Mini-Z servo, a new servo controller is needed. Furitek introduces a super-fast and micro-size Digital servo controller for Kyosho Mini-Z servo that gives high speed response and much better cornering. And with innovative design, the servo controller allows users to choose 4-level speed options: slow, normal, fast and very fast easily by soldering. Users can change the speed option with a touch of soldering without any extra devices.   Features: - Digital servo controller for Mini-Z MR03, AWD - High speed response, support up 400Hz - Extremely smooth and high resolution (12bit ADC) - Speed level options selectable and switchable. - Micro size with barely 1g in weight - Easy soldering - Can use with standalone receivers on many different chassis such as Mini-Z MR03/AWD, PNR2.5W, AMZ, AMR… - Support voltage: 5V-6V input   Specifications: - Dimensions (mm): 11(L)x7.5(W) - Weight: 1g - Voltage support: 5V-8V - ADC resolution: 12bit - Input signal: 50Hz-400Hz