Advantage: Remarkably Lightweight & Better Heat Disppisation:Lightweight as low as 175g.A better dissipates heat better, too. High Flow:45mm/s to meet the fast printing needs. Looks Good. Does Good:Hollow-out design, enjoy the beauty of gear driving. Labor-Saving Lever:Easy to control the in and out of filaments. Quick Detach Heat :Remove the heat with a hex key, easier and more convenient. Dual Gear Feeding & Adjustable Tension:7:1 gear , 7.5kg maximum extrusion force, smoother feeding. Adjustable filament loading tension to better suit flexible filament. Parameters: Extrusion : Dual Gear Extrusion. Maximum Printing Temperature: 270(upgradable to 500.) Weight: 175g (including Heater , Thermistor, and Fan.) Maximum Extrusion Force: 7.5kg (depending on the filaments.) Extrusion (based on the existing): 2700mm/min(depending on the filaments.) E-step: 932/mm at 16 microstep (Further calibration is recommended.) Color: Black+Silver. material: metal Rotation distance: 3.433 Recommended Motor Current: 800mA Gear : 7:1 Drive Gear Circumference: 24.5mm Filament Diameter and Tolerance: 1.75 0.05mm Thermistor Type: NTC100K Dimensions(including the fan): 72.1 x 37.9 x 80.6mm Thread of Nozzle/Heat : Nozzle Diameter: 0.6mm Filament Support:ABS,HIPS,,PET,PVA,TPU Compatible 3D Printers:B1,BX,Ender3,Voron2.4,Voron V0,Vzbot Note: Not compatible with standard NEMA14 motor. Heater Specifications: Head Size: 6 x 20mm Voltage: 24V Power: 70W Fan Specifications: Size:35 x 35 x 10mm Cable:150mm Voltage:24V Speed:900010% Terminal Model:XH2.54 Motor Specifications: Rated Voltage:DC 3.45V Rated Current:DC 1.5A/phase Phase:2 Winding DC Resistance (25):2.3X (110%) Winding Inductance:2.0X (120%) Holding :110mNm Positioning :7mNmREF Insulation Resistance:100M (DC 500V) Insulation Level:Class B Moment of Inertia:8gcm Maximum Operating Temperature: Fan: 50 Motor: 130 Heater : H2 bi-metal (copper alloy + grade5 titanium alloy), 500 compatibility. : 100 Note: it is the maximum working temperature of a single part, not of the whole system. Package Contents: 1 x Extruder 1 accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.