What's in the box:

1 X 3D Printer Stepper Motor Driver TMC2208 V1.2 Stepstick Mute Driver Module with Heat Sink Screwdriver Ultra-Silent Stepper Motor Driver Chip (4pcs) (4), 4

Features:
TMC2208 V1.2 Driver: TMC2208 is single-axis stepper motor drive chip,continuous drive current 1.4A,peak current 2A,voltage range 4.75V-36V,256 subdivision.
Heat Sink: With heat sink effeciently work in heat dissipation,practicaly for prolong the service time of the driver.
Easy to Use: Use the standard step / dir interface,can replace the original TMC2100 and reduce heat generation,especially for the 3D printing market.
Major Features: UART configuration interface,CoolStep current dynamic adjustment technology,dcStep,stallGuard2 stall detection technology,can save 70% of the energy.
Ultra-Quiet: TMC2208 is an ultra-quiet two-phase stepper motor driver chip,because the stealthChop2 ultra-quiet technology.

Specifications:
Material: Mental + Plastic
Model: Stepper Motor Driver TMC2208
Microsteps: Up to 1/256
MicroPlyer: 1/256
Logic Voltage (VIO): 3-5V
Motor Voltage (VM): 4.75-36V
Drive Current: 1.4A
Motor Phase Current: 1.2A RMS, 2.0A Peak
Power: 5W
Item Size: 20.3*14.9*11.5mm / 0.8*0.6*0.5in
Item Weight:
1pcs: 9g/0.3oz
4pcs: 36g/1.3oz
5pcs: 45g/1.6oz
Package Weight:
1pcs: 10g/0.4oz
4pcs: 40g/1.4oz
5pcs: 50g/1.8oz
Package Size: 100*70*30mm / 3.9*2.8*1.2in

Package List:
1 * TMC2208 V1.2 Motor Driver
1 * Heat Sink
1 * Screwdriver