Specification Brand : Fafeicy BulletPoint1 : Efficient Use: Small in power, the stepper motor enables stable speed, low noise and little loss for a efficient 3D printer extruder. BulletPoint2 : Easy installation: This 2-phase 4- motor is designed to be light in weight, small in size, and very easy to install. BulletPoint3 : Reliable Work: Comes with quick heat dissipation, 0.3N·m large torsion as well as high accuracy, the 42 step motor is very practical. BulletPoint4 : Better Design: Dual output shafts in D type promise driving, and the default configuration shaft is 23mm, will not malfunction. BulletPoint5 : Easy to Install: Designed to have a light weight and a compact size, the installation of this 2 phase 4 motor is very convenient. Color : Multicolored CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 6971573447032 ExternallyAssignedProductIdentifier1 : 0790901932066 ExternallyAssignedProductIdentifier2 : 790901932066 IncludedComponents : inc ItemDisplayWeight : 190 grams ItemName : 3D Printer Stepper Motor, 3D Printer Stepper Motor, 0.3Nm 1.3A 3D Printer Stepper Motor 2 Phase 4 Accessory 42 Step Dual Output, Electricmotor ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : 3d-printer-motors Manufacturer : Fafeicy Material : Stainless Steel ModelName : Fafeicybvm3xf0hzu ModelNumber : Fafeicybvm3xf0hzu NumberOfItems : 1 PartNumber : Fafeicybvm3xf0hzu ProductDescription : Specification: Item Type: 3D Printer Stepper Motor Model: 42BYGH34-1304B Body Height: Approx. 34mm / 1.34in Torsion: 0.3N·m Current: 1.3A Shaft Diameter: Approx. 5mm / 0.2in, D Type Front Shaft Length: Approx. 20mm / 0.79in Rear Shaft Length: Approx. 10mm / 0.39in, socket type. Note: The default configuration shaft is 23mm / 0.91in(approx.), the wiring length is 30cm / 11.81in, 70cm / 27.56in, 1m / 3.28ft(approx.). : 2 phase 4 (black A+, green A-, red B+, blue B-).