1、Designed for Spider Motherboard: This S2240 V2.0 stepping motor driver is suitable for Spider Motherboard 3D printer motherboards. 2、TMC2240ATJ Chip: This stepper motor driver adopts TMC2240ATJ chip which ensures ultra quiet and stable performance, up to 36V voltage. 3、Ultra Quiet: This SPI stepper motor driver extends the silent chopping speed range to higher level, solves the problem of switching point jumping, and enhances the silent effect. 4、Durable Material: This silent stepper driver is made of premium printed circuit board and metal material, sturdy and highly durable, perfect for 3D printing enthusiasts and professionals. 5、SPI Operation Mode: This S2240 V2.0 stepping motor driver adopts SPI operation mode. It supports 4.5V to 36V voltage, 2.1A IRMS, 3A IFS, maximum 256 subdivision, 230mQ RDSon. Item Type: Stepping Motor Driver Material: Printed Circuit Board, Metal Chip: TMC2240ATJ RDSon (H+L): 230mQ IRMS: 2.1A IFS: 3A Maximum Subdivision: 256 Operation Mode: SPI 1 x Stepping Motor Driver 1 x Cooling Plate 1 x Screwdriver