b' Features: Default the middle timing is not suitable for high-power motors, such as long-term full load current operation, Industrial control electric gadgets for small space and low-power for DC three-phase brushless motors. It is specially used for air pumps, water pumps, oil pumps, fans, etc. Non-inductive model and no need for Hall, the board comes with a speed regulating potentiometer connect the three phase wires of the motor, connect the two power wires, it can work when it is powered on, and it can be used after sending the cable This driver is a low-power fan brushless driver, and it can also be embedded in other systems. Specifications: Product Name: Three-phase for DC Brushless and Hallless Drive Model: X10 (no sense) Working voltage: 6-20V (limit 5-24V) Drive current: 3A max Maximum speed: 224000 RPM (2 pole motor), 74000 RPM (6 pole motor), 40000 RPM (12 pole motor), 35000 RPM (14 pole motor). Product Size: approx Length 34MM x Width 27MMx Height 11MM/1.33x1.06x0.43 Weight: X10 8g (including wire) Cable Length: approx 12.5cm/4.92in Connecting: U V for W phase line output is connected to the motor; VCC GND main power supply (external for DC power supply) Note: 1. There is no fuse in the power supply circuit on the motherboard. Reverse connection of the positive and negative poles of the power supply will cause permanent damage to some of the chips on the board. 2. There is motor blocking for protection during normal operation. Please do not artificially short-circuit when the module is not working normally. Once short-circuiting may cause the line to burst, please use small current and low voltage test for the first wiring test. Matching use of three-phase for DC brushless motors with equivalent current and power 3. Do not connect the motor that is obviously inconsistent with the drive module voltage, current, or power, to avoid inexplicable nonsensical damage Package includes: 1 PC x Three-phase for DC Brushless and Hallless Drive'