Features: Functional test has been done for each one. The MOS tube performance is excellent, nominal maximum current is 280A. Maximum current can be up to 30A or more due to extra large heat sink. Can use heatbed output signal of Ramp1.4 and series to control. Can use digital signal of 5-24V to control. Specifications: Material: PCB Function: Control Hot Bed, Heated Print Head Power Supply: 12V-24V Compatibility: For CR-10/ Ender-3/ Prusa/ TEVO/ BLV/ MGN/ Cube 3D Printer Module Size: 8.8 * 6.7 * 3cm/ 3.5 * 2.6 * 1.2in Module Weight: 127g/ 4.5oz Package Size: 15 * 10 * 3.7cm/ 5.9 * 3.9 * 1.5in Package Weight: 191g/ 6.7oz Usage: 1. Plug a power supply; 2. Connect to heated bed; 3. Connect digital control signal to GND, D8 of MINI; 4. Connect to the heated bed signal on Ramps1.4 or series controller boards. Packing List: 1 * MOS Module 1 * Double Head Power Cord 1 * Red Power Cord 1 * Black Power Cord 1 * Connection Cable with PINS 4 * U-shaped Terminal