1. Compatible With Brushless Motors With Hall And Without Hall, Automatic Identification Of Sensory And Non-Sensory Drives, No Need To Set2. Speed Regulation Mode: Support Open-Loop Speed Regulation And Controller Closed-Loop Speed Regulation, Set By Dial Switch.3. Speed Regulation Mode: Modbus Rtu 485 Communication Control, External Potentiometer/Analog Signal/Pwm/Aircraft Model Pwm/Joystick Control, Internal Potentiometer Control. Support Long-Term Stalling Without Burning The Motor And Controller, Support Stalling Alarm, How Long Does The Stalling Last?4. Supports Enabling, Reversing, And Emergency Control; The Control Interface Is Compatible With Active Control (Maximum 24v) And Passive Control. Supports A Maximum Speed Of 110000rpm (1 Pole Pair Motor).5. Programmable Output Interface: Support Alarm Signal/Commutation (Speed) Pulse/Stop Signal/Communication Control Output, The Output Signal Is 3.3V Level Signal. Support Phase Sequence Learning, Motor And Controller Automatic Adaptation.Depending on the batch, the appearance, color, and printing of the product , which does not affect use.Product Name: Brushless Motor Driver Board ControllerSize: Motherboard Size: About 118 x 64 x 25mm, Installation Hole Diameter: About 4x4mmBrushless Motor: 9V-36VColour:greenMaterial:PCBPackage Contents:1 x Driver Board Controller MotherboardOnly the above package content, other products are not included.Note: Light reflection 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.